DOGGETT, Justice,
delivered the opinion of the Court, in which
PHILLIPS,1 Chief Justice, and GONZALEZ, HIGHTOWER, GAMMAGE, and SPECTOR, Justices, join.
The opinion of June 30, 1993 is withdrawn and the following is substituted. In this case we consider whether, under the Texas due course of law guarantee, a biological father may be denied an opportunity to establish his paternity and claim parental rights.
While living together in 1988, Larry G. and Judy T. conceived a child later named J.W.T. Though still married to Randy T., Judy had planned to marry Larry after resolution of her pending divorce. Judy and Larry together arranged for prenatal care with a local clinic in' a contract acknowledging Larry’s paternity. Pursuant to that agreement Larry made several payments for obstetric treatment.
Judy and Randy later reconciled and dismissed their divorce action. Before the child’s birth, Larry brought an action under the Texas Family Code alleging that he was the father of J.W.T., acknowledging responsibility for child support payments, and re1 questing a judicial declaration of paternity and recognition of his visitation rights. After [190]*190the birth, Larry unsuccessfully attempted to maintain contact with J.W.T. Under court order, the parties submitted to scientific paternity testing, which showed a 99.41% probability that Larry was J.W.T.’s biological father.
Accepting the contention of Randy and Judy that Larry lacked standing under the Texas Family Code to bring any action relating to J.W.T., the trial court rejected Larry’s assertion of constitutional rights and dismissed his claim. The court of appeals reversed, determining that Section 11.03(a)(7) of the Texas Family Code, under which Larry was denied standing to sue, violated the due course of law guarantee contained in article I, section 19 of the Texas Constitution. 815 S.W.2d 863. We affirm the judgment of the court of appeals.
I.
Critical to this appeal is an understanding of the various provisions of the Texas Family Code that affect a putative father’s ability to establish parental rights. If, when a child is born, the mother is married to someone other than the biological father, her husband is “presumed” to be the child’s actual father, and this “marital presumption” may not be attacked by any party outside the marriage except a government entity. See Tex.Fam. Code §§ 12.02(a), 12.06(a) (Vernon Supp. 1994); In re M.R.M., 807 S.W.2d 779, 782 (Tex.App.—Houston [14th Dist.] 1991, writ denied).
Several provisions of the Code operate in tandem to prevent a man claiming to be a child’s biological father from suing either to rebut the marital presumption or to claim parental rights by establishing his paternity. A biological father has standing to sue under the Family Code only if the child he claims has no presumed father, Tex.Fam.Code § 11.03(a)(7);2 and the only type of action he may bring is a paternity suit under Chapter 13, which is limited to children who have no presumed father. Id.; Tex.Fam.Code § 13.-21(a).3 The marital presumption is irrebutta-ble in a Chapter 13 suit and, even under Chapter 12, only the husband or wife may deny the husband’s paternity of a child born during their marriage. Tex.Fam.Code § 12-06(a).4
Thus, a biological father of a child with a presumed father is given the opportunity for a hearing before a court to establish parental rights only at the request of another party; he may not himself initiate such proceedings. With Randy’s paternity of J.W.T. denied by neither Judy nor himself, Randy remains the legally recognized, “presumed” biological father. Under the provisions of the Family Code, Larry is completely barred from asserting his paternity and claiming any relationship with his apparent natural son, J.W.T.
II.
Relying on both his biological connection with and actions to accept responsibility for J.W.T., Larry contends that the Family Code’s denial of his parental rights violates the command of Article I, section 19 of the Texas Constitution that:
[191]*191No citizen of this State shall be deprived of life, liberty, property, privileges or immunities, or in any manner disfranchised, except by the due course of the law of the land.
Under this provision, Larry seeks an op-, portunity to prove paternity5 and to obtain a judicial declaration entitling him to both the rights and the obligations of a “parent.” As a “parent,” Larry could be appointed a managing or possessory conservator of J.W.T., unless shown not to be in J.W.T.’s best interest. See Tex.Fam.Code §§ 14.01, 14.03. If appointed, Larry would be invested with all of the parental rights recognized by the Family Code, except those that the trial court orders are to be exercised exclusively by Judy, including direction of the child’s moral and religious training, management of his estate, access to his services and earnings, right to consent to his marriage or participation in the military, and representation of the child in any legal action. Id. §§ 12.04, 14.04, 14.02.
A declaration of paternity would also impose parental duties, including that of financial support and provision for the child of clothing, food, shelter, medical care, and education, as well as contribution to the mother’s pre- and post-natal health care expenses. Id. § 13.42, 12.04. These duties may be forced upon Larry regardless of whether he attempts to exercise any concurrent rights of parenthood6 — a paternity suit may be brought at any time by a number of other interested parties whose standing to sue does not depend on the absence of a presumed father. See, e.g., In re S.C.V., 750 S.W.2d 762 (Tex.1988) (mother’s suit to enforce child support against biological father of child born during her marriage to another man).
Of all the parties granted standing under the Code, only an alleged biological father’s standing depends on the absence of a presumed father. See Tex.Fam.Code § 11.03(a); 13.01. The State, for example, has standing to enforce parental obligations against the biological father of a child born with a presumed father; it can disestablish the presumed father’s paternity, introduce evidence to rebut the marital presumption, and institute a Chapter 13 paternity suit against the biological father. Id. § 12.06; see Attorney General of Texas v. Lavan, 833 S.W.2d 952 (Tex.1992). In short, Larry asks why he cannot assume for himself a responsibility that can be imposed on him by the State, his child, or that child’s mother.
III.
Acceptance of Larry’s argument that the due course of law provision guarantees him an opportunity to prove paternity would have been highly improbable at the time of the ratification of our Texas Constitution in 1876. A paternity suit was not permitted in Texas at common law.7 Under English common law, an onerous burden of overcoming the marital presumption was designed to protect a child from the harsh consequences of a finding of illegitimacy, which included an inability to obtain support from the father or to inherit from either parent.8 A child could [192]*192not be delegitimized by proof of the spouses’ lack of access to one another if the husband was present “within the four seas” surrounding England at the time of conception, unless his impotence or sterility was proven.9 An evidentiary rule known as Lord Mansfield’s Rule, first articulated in 1777,10 further prohibited either the husband or the wife from testifying about lack of access, thus requiring evidence or testimony from sources outside the marriage, which were more difficult to secure. Although widely criticized by legal scholars,11 this rule was generally embraced by the courts, and then gradually rejected in the twentieth century as the legal disabilities associated with illegitimacy diminished.12 See Kisthardt, supra note 8.
These conventions were recognized in Lane v. Phillips, 69 Tex. 240, 6 S.W. 610, 611 (1887), in which this court observed with regard to the offspring of an unmarried man and woman who had lived together for twelve years:
while they are his children in fact, the rules of the common law refuse to recognize them as his children, to impose upon him the duties and obligations which the lawful father cannot avoid, or to confer upon them the right to support and and parental care which the child begotten in wedlock has.
Though conceding that “[t]he harshness of this rule ha[d] long been felt,” the court went so far as to question the constitutionality of any statute “which [would] compel the father of an illegitimate child to support it or to contribute to its support.” Id. Such an enactment
would most probably be held contrary to such constitutional provisions as provide for equality in public burdens, or would be held to be the exercise of an arbitrary power inconsistent with that relation between the state and the subject which all governments not thoroughly despotic rec-ognize_ [T]he common law, for reasons of public policy, refused to enforce [a father’s duty to support his illegitimate offspring]; it would be difficult to justify a law enforcing or imposing a personal obligation upon the sole ground that its enforcement would compel the performance of a merely moral duty.
Id.13 Having “recogniz[ed] his natural and moral obligation” of support, the father, together with the children and their mother, were nevertheless held to have “constituted such a family as entitled to the homestead exemption.” Id. at 612.
Despite the harsh rules governing the legal relationship between illegitimate children [193]*193and fathers, the court nonetheless conferred a right upon a father who assumed the obligations of parenthood. This link of the rights and responsibilities of parenthood is reflected in recent family law developments.
IV.
Significant twentieth century changes in the resolution of issues affecting the family are reflected in statutes, demographics, alteration of social attitudes toward illegitimate children, and decisions of the Texas courts. With the enactment of the Texas Family Code in 1973, a method was statutorily afforded a putative father to establish his paternity voluntarily. See Paul Knisely & Broadus Spivey, Paternity Determinations in Texas: Five Years Under Chapter 13 of the Texas Family Code, 20 S.Tex.L.J. 465, 465 (1979). Adoption in 1975 of an involuntary paternity action, by which others could enforce parental duties upon biological fathers, finally secured the right of illegitimate children to obtain paternal support, as mandated in Gomez v. Perez, 409 U.S. 535, 93 S.Ct. 872, 35 L.Ed.2d 56 (1973).14 See Ernest E. Smith, Illegitimate Children and Their Fathers: Some Problems with Title 2, 5 Tex.Tech.L.Rev. 613, 614 (1974); History of the Texas Family Code, 5 Tex.Tech.L.Rev. 267, 268 (1974). The new statutory paternity action applied, however, only with regard to those children born to an unwed mother, and the marital presumption was codified without any mechanism for its rebuttal. See § 12.02, Act of June 15, 1973, 63rd Leg., R.S., ch. 543, 1973 Tex.Gen.Laws 1420.
After paternity suits became statutorily available, this court overruled its prior recognition of Lord Mansfield’s Rule. Davis v. Davis, 521 S.W.2d 603 (Tex.1975). Because an illegitimate child had rights vis-a-vis the true biological father, attempts to preserve the fiction that the mother’s husband was the father no longer necessarily protected the child’s best interest:
Rules that exclude evidence bearing directly on the truth to be determined ought not to survive without very good cause-Some courts have said that the Rule is required for the protection of the child. This may or may not be its consequence. It may be harmful to the interest of the child.
Id. at 607.
Under Davis, however, the marital presumption continued to bar delegitimization absent testimony regarding non-access or sterility. If married and living together as husband and wife, neither spouse could rebut the marital presumption, not even with scientific evidence of another’s paternity. See Clark v. Clark, 643 S.W.2d 795 (Tex.App.—Fort Worth 1982, no writ); Magana v. Magana, 576 S.W.2d 131 (Tex.Civ.App.—Corpus Christi 1978, no writ). Not until 1983 was the husband/presumed father statutorily permitted, under Section 12.06 of the Family Code, to deny paternity of a child born to his wife during their marriage, and to seek court-ordered blood testing to disprove paternity. See Act of Sept. 1, 1983, 68th Leg., R.S., ch. 424, § 7, 1983 Tex.Gen.Laws 2355. In 1987, the same right was accorded the wife. See Act of June 18, 1987, 70th Leg., R.S., ch. 689, § 5, 1987 Tex.Gen.Laws 2548.
Though now considered a limitation on attempts to disestablish presumed paternity,15 Section 12.06 was initially deemed “the destruction of the nearly irrebuttable presumption of legitimacy,” and hailed as “enthroning] science as the supreme arbiter” of paternity. John J. Sampson, Title 2. Par[194]*194ent and Child, 1986 Texas Family Code Symposium, 17 Tex.Tech.L.Rev. 1065, 1151 (1986). Permitting the scientific truth about paternity to govern the legal relations between the real people affected by court rulings promoted certainty and stability:
[0]nce the subject has been broached, the only way that the parties will ever function on a reasonably civilized basis is to settle once and for all whether the husband indeed is the father of the child. After doubt has arisen on that question, the chance for compliance with child support orders, the establishment of a reasonable parent-child relationship between the to-be ex-husband and the child, and all the other innumerable aspects of the relationship are contingent on the man’s knowledge of the truth regarding his suspicion.
Id.
Married parents separate, live with others, divorce, and remarry — sometimes each other. More than one quarter of the children in this country are born to unmarried mothers, and with the prevalence of divorce, an even greater proportion of children live in households in which one or both of their natural parents are absent. See Statistical Abstract of the United States 69, 54 (1992). These trends remain a part of the social structure within which our judicial system operates.16
The Texas Family Code no longer employs the term “illegitimacy.” See Act of Sept. 1, 1989, 71st Leg., R.S., ch. 375, 1989 Tex.Gen. Laws 1477-87 (adopting “child who has no presumed father” to replace the term “illegitimate child” throughout the Family Code). Nor do we require Family Code legitimation as a prerequisite to a child seeking recovery for the loss of a natural father. Garza v. Maverick Market, Inc., 768 S.W.2d 273 (Tex.1989).
Human physiology has not changed, but our understanding of it has. Current methods of scientific testing provide more reliable and less intrusive means of determining paternity. Under the current Family Code, the court is required to order the mother, alleged father, and child to submit to scientifically accepted paternity testing that excludes at least 99% of the male population from the possibility of parentage. Tex.Fam.Code § 13.02 (Vernon Supp.1994). And advances in genetic testing techniques can accommodate this requirement. See Margery W. Shaw & Miriam Kass, Illegitimacy, Child Support, and Paternity Testing, 13 Hous. L.Rev. 41, 52 (1975).
V.
We have recognized the adaptability to such changes of our state’s fundamental governing law and found considerable strength in the organic nature of its command. Davenport v. Garcia, 834 S.W.2d 4,19 (Tex.1992, orig. proceeding).
In asserting a due course of law claim, Larry must establish that his interest is constitutionally protected. See Tarrant County v. Ashmore, 635 S.W.2d 417, 422 (Tex.1982) (extending due course protection to interest of official in elected position); see also Rogers v. Texas Commerce Bank—Reagan, 755 S.W.2d 83 (Tex.1988) (per curiam) (deprivation of rights without hearing violates art. I, § 19); Kramer Trading Corp. of Texas v. Lyons, 740 S.W.2d 522, 524 (Tex.App.—Houston [1st Dist.] 1987, no writ) (protecting constitutional right under art. I, § 19).
In previous decisions, we have accorded great respect for the biological bond between parent and child. In Wiley v. Spratlan, 543 S.W.2d 349, 352 (Tex.1976), we recognized that “[t]he natural right which exists between parents and their children is one of constitu[195]*195tional dimensions.” Accord Holick v. Smith, 685 S.W.2d 18, 20-21 (Tex.1985); In re G.M., 596 S.W.2d 846 (Tex.1980). Similarly, in Gunn v. Cavanaugh, 391 S.W.2d 723 (Tex.1965), we declared that
the rights of the natural parent are of high importance and due process properly requires that the burden of proof to show forfeiture of parental rights rests upon [whomever challenges those rights].
We have nonetheless tempered these decisions by recognizing that the rights of natural parents are not absolute; protection of the child is paramount. See id. The rights of parenthood are accorded only to those fit to accept the accompanying responsibilities. See, e.g., Tex.Fam.Code § 14.03(d) (parental visitation may be refused when such would “endanger the physical or emotional welfare of the child”).
To determine the extent of procedural rights to which a biological father is entitled, we must consider the public interest in protecting the child along with the father’s constitutional interest in establishing a relationship with his child. In a situation such as that presented here where the biological father does assert his interest17 near the time of the child’s birth,18 standing is constitutionally mandated if he both 1) acknowledges responsibility for child support or other care and maintenance, and 2) makes serious and continuous efforts to establish a relationship with the child. In In re K, 535 S.W.2d 168, 171 (Tex.1976), we noted the presence of a
[genuine public] interest in securing stable homes and supportive families for children, [in] distinguishing] between the father who has accepted the legal and moral commitment to the family and the father who has not done so.
This emphasis on the father’s commitment to parental duties is consistent with that reached under the due process provision of the Louisiana Constitution. See In re Adoption of B.G.S., 556 So.2d 545 (La.1990). There, the court explained that
[t]his [constitutional] interest does not come into existence or is soon lost, however, if the father is unable to demonstrate that he is fit and committed to the responsibilities of parenthood. Moreover, he must show that he has taken concrete actions to grasp his opportunity to be a father and that there is a potential for him to make a valuable contribution to the child’s development. Consequently, the mere existence of a biological link and fitness will not sustain the father’s interest; it is defeasible if not preserved by dedicated, opportune fatherly action.
Id. at 550.19
To permit proof of such an interest, Texas courts have sought to ensure a fair hearing to a putative father. As we concluded in In re K:
the biological father of an illegitimate child [has] the opportunity to prove which category [accepting commitment or not accepting responsibility for the child] in which he falls and to show that he should not be treated differently from fathers legally committed to the mothers of their children. Thus [the putative father] sought and received a fair hearing.
535 S.W.2d at 171. Similarly, in Rogers v. Lowry, 546 S.W.2d 881, 884 (Tex.App.—Houston [1st Dist.] 1977, orig. proceeding), the court held that: “[A] child’s biological [196]*196father has such a substantial interest in the [adoption] proceeding that due process requires he be afforded notice and an opportunity to be heard.” See also In re C.D.V., 589 S.W.2d 543, 547 n. 3 (Tex.Civ.App.—Amarillo 1979, no writ) (to avoid due process implications, preferable to provide notice of adoption proceedings to biological father). While these cases recognized only the importance of providing due process to fathers of illegitimate children, we conclude that the right to be heard does not cease merely because the mother is married.
While federal jurisprudence may be useful in understanding our state constitutional guarantees, see Davenport, 834 S.W.2d at 20, the help on the question presented here is limited by the sharp divisions present in the consideration of a claim similar to Larry’s in Michael H. v. Gerald D., 491 U.S. 110, 109 S.Ct. 2333, 105 L.Ed.2d 91 (1989).20 Michael H., the putative father, challenged the conclusive presumption created by a California statute that a man cohabiting with his wife was the biological father of a child born during the marriage. Id. at 119-20, 109 S.Ct. at 2339-40. Notwithstanding both his biological fatherhood and participation in rearing his daughter, Michael H. was found by a four-member plurality to possess no interest deserving constitutional protection,21 despite recognition by the other five members of the Court22 that this holding was in apparent conflict with recent application of the federal Due Process clause to biological fathers. Id. at 133, 109 S.Ct. at 2347 (Stevens, J., concurring); id. at 142, 109 S.Ct. at 2352 (Brennan, J., dissenting); id. at 158-59 at 129, 109 S.Ct. at 2360-61 at 2345 (White, J., dissenting) (citing Stanley v. Illinois, 405 U.S. 645, 92 S.Ct. 1208, 31 L.Ed.2d 551 (1972)); Caban v. Mohammed, 441 U.S. 380, 99 S.Ct. 1760, 60 L.Ed.2d 297 (1979)); see also Note, Rebutting the Marital Presumption: A Developed Relationship Test, 88 Colum.L.Rev. 369, 379 (1988) (predicting, prior to Michael H., that a statute creating an irrebuttable presumption would violate the federal due process rights of a putative father).
Michael H. was, consequently, considered an aberration — “the plurality’s departure” [197]*197from previous federal decisional law — by the Louisiana Supreme Court in In re Adoption of B.G.S., 556 So.2d at 549-50 n. 2, and is perhaps best described in Justice Brennan’s dissent:
The atmosphere surrounding today’s decision is one of make-believe. Beginning with the suggestion that the situation confronting us here does not repeat itself every day in every corner of the country, moving on to the claim that it is tradition alone that supplies the details of the liberty that the Constitution protects, and passing finally to the notion that the Court always has recognized a cramped vision of “the family,” today’s decision lets stand California’s pronouncement that Michael— whom blood tests show to a 98 percent probability to be Victoria’s father — is not Victoria’s father. When and if the Court awakes to reality, it will find a world very different from the one it expects.
Michael H., 491 U.S. at 128, 109 S.Ct. at 2345 (Brennan, J., dissenting); see also In re Adoption of Kelsey S., 1 Cal.4th 816, 4 Cal.Rptr.2d 615, 627, 823 P.2d 1216, 1228 (Cal. 1992) (stating “we must not read too much into Michael H.,” and relying on that ease for the proposition that five justices recognized unwed father’s liberty interest). It is wholly under our Texas due course of law guarantee, which has independent vitality, separate and distinct from the due process clause of the Fourteenth Amendment to the U.S. Constitution,23 that we reach today’s decision.
VI,
Randy and Judy insist that Larry’s right to be heard may be statutorily denied. They argue that, by prohibiting an alleged biological father from asserting his paternity, the Family Code protects the marital unit from intrusion by outsiders and protects the child from delegitimation. The State has a legitimate interest in minimizing familial disruptions that are harmful to the child. But as the court of appeals observed, this marital unit was clearly disrupted before Larry ever filed this suit:
[t]hat the biological mother, for whatever reason, has chosen to engage in sexual relations outside of marriage is proof itself that the “integrity and solemnity of the family unit” has been damaged at least to some degree. [Resolution of these difficulties by the husband and wife] does not, we feel, give license to the state to perpetuate the myth of “presumption of paternity” so as to deprive the biological father of at least a chance of being able to exercise those rights, duties, privileges, and responsibilities that all civilized societies have recognized to be fundamentally ingrained in the concept of parenthood.
815 S.W.2d at 869.
Perhaps this asserted interest had merit in an earlier era when the true biological father could not be established with near certainty and when illegitimacy carried a significant legal and social stigma. Since this is no longer the case,24 the focus should more properly be directed toward what is best for the child — it may be in best interest of the child to allow development of a relationship with the natural father and it may not.25 The effect of the alternative offered by the dissenting justices is to leave this determination of the child’s best interest and the definition of family, itself, exclusively to the biological mother. In the name of protecting the family, Justice Enoch would grant rights to putative fathers who had been permitted by [198]*198the mother to develop a relationship with the child but not to those not afforded that opportunity. 872 S.W.2d at 202 n. 5. (Enoch, J., dissenting).
To Justice Enoch, Larry is only “a stranger to the marriage into which the child is born,” id. at 200, despite having lived with the mother during the marriage, as well as their mutual arrangements for prenatal care. This relationship is morally judged, rather than legally judged, being dismissed as a mere “dalliance,” id. at 200 n. 1, without explaining why the rights accorded to one participant in their relationship should overwhelm those of the other. The father is a “stranger,” if that term has any relevancy to this issue, only in so far as the statutory law has traditionally deprived him of rights.
We do not say that our Constitution guarantees every natural father ties with his illegitimate offspring.26 We do say that one who is arbitrarily prevented from attempting to establish any relationship with his natural child, after making early and unqualified acceptance of parental duties as Larry has done, is denied due course of law under section 19 of our Texas Bill of Rights. Those provisions of the Family Code that bar Larry’s pursuit of his parental rights violate our constitutional guarantee that every Texan shall be accorded due course of law. We, therefore, hold unconstitutional Section 11.-03(a)(7)- and 12.06(a) to the extent that they wholly deny a putative father’s standing to sue with regard to a child who has a presumed father, and prevent the bringing of any suit affecting the parent-child relationship in which a presumption of paternity may be rebutted.27
The judgment of the court of appeals is affirmed and this cause is remanded to the trial court for further proceedings consistent with this opinion.