The Development of Sex, Marriage, and Nature in Christian Thought

“To have intercourse without intending children is to violate nature, which we must take as our teacher.”  – Clement of Alexandria

Throughout many traditions of Christian thought, theologians have taken nature, by which they’ve generally meant human nature, as an instructor of moral norms.  It would be a mistake to read “nature” here as simply descriptive of what occurs in nature, as if these occurrences provided moral norms or precepts; rather, nature teaches because nature has purpose.  Christian morality is usually teleological: one ought to do the good, and the good is that which brings a being completion or fulfillment.  Knowledge of truth is good for human beings because human beings are rational creatures.  Health is good for us because we’re living creatures.  This, in a nutshell, is the natural law tradition.

You can see this basic moral framework in the claim of Clement of Alexandria (150-215)  that I quoted above.  You might have noted that Clement’s reasoning, while appealing to nature, takes a much stricter line than most of today’s Christians, the Catholic hierarchy included, on what nature morally permits.  Where today you’ll hear the pope forbid his followers from frustrating conception or engaging in sex outside the form that would typically lead to procreation, you won’t hear him tell Catholics that they must intend pregnancy with every act of sex.  Catholic thought has developed just a little bit.

Clement’s reasoning avoided the nuances that trouble Catholics today attempting to explain their church’s somewhat confusing teaching.  For him, sex was strictly for procreation and therefore marriage was strictly for those who could procreate.  No marriage for the young or old.  No sex during times of infertility.  Pretty simple.  In fact, Clement specified when during the day those permitted to marry could have sex: no intercourse “after coming home from church or from the marketplace or early in the morning like a rooster, for these are the proper times for prayer and reading and the other deeds done during the day.”  For all his keeping of nature’s rules and regulations, Clement was a defender of sex and marriage against gnostic sects of his day that taught their followers and other Christians to renounce and refrain from sex and marriage, believing these epitomized the condition of human sinfulness.

Comparing this theology of sex to the larger tradition brings to light the differences in the way nature has been understood throughout the history Christian thought.  The meaning and moral application of nature has a history of difference and development, even where those who use the term mean to refer to some absolute, as was the case for Clement and is the case for the contemporary Roman hierarchy.  Augustine , for example, also preached that conjugal intercourse for any sake other than procreation, even within marriage, carries some fault; but he, believing marriage has a purpose and natural order including but beyond simply procreation, called lustful sex in the context of marital fidelity a “forgivable fault.”  Not exactly praise, but looking back we can see how a forgivable fault could become, in time, something morally neural and possibly virtuous.

Looking at this development, I’m particularly intrigued by the fact that, within the same basic framework of natural moral order, an act that was once thought to be absolutely forbidden (marital sex not intending procreation) became considered a “forgivable fault” and eventually received blessing from authorities on high.  Makes me curious what developments of thought lay ahead, especially, as I hope, the church learns from and incorporates feminine and feminist perspectives on the matter.

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Kyle Cupp

Kyle Cupp is a freelance writer who blogs about culture, philosophy, politics, postmodernism, and religion. He is a contributor to the group Catholic blog Vox Nova. Kyle lives with his wife, son, and daughter in North Texas. Follow him on Facebook and Twitter.

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5 Responses

  1. James says:

    I find this especially interesting considering the writings of John Paul II that sees sex in marriage as a “cure” for faults, lust, and disordered desire. Using Paul Newman’s logic, JPII seems to have the view that getting steak at home makes you less likely to want to go out for hamburger.

    I’ve been quite critical of the traditional Catholic Natural Law approach to sexual ethics. It leaves a lot out, emphasizes the wrong things, and, quite frankly, isn’t very convincing. A more personal approach is needed, but this only brings more questions.

  2. bookdragon01 says:

    While the sex-only-for-procreation idea strikes me as a serious wrong turn (and pretty hard to support if you read Song of Songs or even some of the narrative parts of the Torah as anything but rather strained allegory), what interests me about the Natural Law argument is how people living in a much more agrarian society could have failed to notice that quick a lot of other animals seem to engage in homosexual sex and/or having multiple mates and/or switching mates every season.

    Really, just a little clear-eyed observation should have put paid to the idea that nature teaches us how we ought to behave wrt sex.

    • Morat20 says:

      They’re just animals, doing animal things. People know better was, I believe, the going view at the time. (or something similar).

      People, after all, are not mere animals. I still hear that occasionally when the topic of homosexuality and ‘choice’ comes up — it’s often pointed out that homosexuality is wide spread among the mammals, and even birds. (Including creatures that take one permanent mate).

      Then again, a lot of folks seem awfully confused between sex and dominance behavior in animals, which can look alike if you’re not paying much attention.

  3. Jaybird says:

    Clement was a defender of sex and marriage against gnostic sects of his day that taught their followers and other Christians to renounce and refrain from sex and marriage, believing these epitomized the condition of human sinfulness.

    This is where I usually find the answer to be: “What is he fighting against?”

    You can’t look at him where he is, exactly, you have to look at him where he is in relation to where his opponents are.

    • James says:

      IIRC, the gnostic cults saw non-procreative sex as a “lesser evil” than sex with procreation. The reality of the cults was lots of sterilized sex for most “imperfect” believers. It was this belief that Augustine condemned and is likely what Clement is condemning as well. Aquinas spent a lot of time dealing with misunderstandings of Augustine, so this is nothing new.

      Furthermore, we shouldn’t take the fathers out of historical context. They didn’t know as much about human reproduction as we do now and they were writing about specific situations. For example, Augustine’s condemnation of the crude rhythm method employed by the Manicheans in order to completely avoid parenthood because they believed reproduction was bad is not a condemnation of modern methods of NFP.

      More recently, it seems like supposed “doctrinal shift” from Casti Connubii to Humanae Vitae is due to changes in technology, not underlying Church teaching:

      1930 – Pius XI – rhythm theorized, but not known – Providentialism or total abstinence only realistic options.
      1951 – Pius XII – rhythm known, but unreliable – Providentialism or total abstinence encouraged.
      1968 – Paul VI – modern methods of fertility awareness known – Couples encouraged to learn and use as discernment tool.

      People interpret the documents anachronistically or out of the broader context of Catholic tradition and get some really strange ideas.