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Nature Affirms God’s Design
We note that the Bible is crystal clear in both the Old and New Testaments regarding what marriage is; it is the union of one man and one woman for a lifetime. Yet, even without the Bible, the Creator’s design for human relationships, including the fundamental role marriage plays for the benefit of individuals and society, would be abundantly evident. It should not surprise us that the Bible and nature say the same thing, because God is the author of both.
Let’s consider several realities.
First, a man and a woman fit together physically. We see this most clearly in the outlines of the genitalia of a male and a female. This is a fitting that obviously is not present with two men or two women. Moreover, sexual intercourse involves precisely one man and one woman. The human bodies of the man and the woman therefore point to monogamy and sexual exclusivity—and those of same sex couples point to abstinence from sexual activity altogether.
Second, sexual encounters between a husband and wife enhance their relationship by bonding them together physically, emotionally, psychologically, and on many other levels through sexual intercourse. Sexual pleasure is an inseparable part of these experiences. The man and his wife must learn how to pleasure each other, certainly; but their bodies cooperate naturally as sexual arousal occurs. Physical gratification, though, is not the only purpose for sex.
As the male and female bodies are aroused, they also set the stage to increase the chances that fertilization and pregnancy will occur. (Read more here about some of the physiological miracles that occur as a husband and wife come together sexually—but be aware at the outset that this material is explicit). This is the third point we should consider. Only a heterosexual union can produce a baby. Infertile couples certainly do exist, but they do not negate the general rule that when one man and one woman come together and share themselves with each other intimately and sexually, the way is paved for conception, pregnancy, and the eventual arrival of a child. The “one flesh” union, therefore, isn’t just about a couple’s coming together and uniting their bodies sexually; it’s also about the “one flesh” person that can and often does result from the sexual experiences they share. As Ryan Anderson has said, “The lovemaking act is also the life-giving act. The act that unites a man and a woman as husband and wife is the same act that can make them mother and father. This begins to tell us something about what the marital relationship is ordered toward.”1
Fourth, the baby, when it arrives, is totally helpless. She needs nourishment on a regular basis. He needs to have his diapers changed—repeatedly. We are truly deaf and blind in the most extreme sense if we fail to see that nature’s way of bringing a new human life into the world also makes a clear and bold statement about who should have the primary responsibility to care for newborns when they arrive. Moreover, this isn’t just about caring for babies and children so they will grow up to become responsible individuals; it’s also about maintaining a healthy society for years to come. The future of the human race depends on reproducing it so those dying out can be replaced. This can occur only with heterosexual couples. As Charles Colson put it, “The survival of the human race depends upon marriage as the institution by which we procreate and perpetuate civilization.”2
Fifth, men and women are different in ways beyond their obvious biological differences. Creation and practical experiences testify to this, despite cultural efforts to wipe out references to these contrasts. Today we even know that male and female brains are different,3,4,5 but historically we also have recognized a variety of distinctive traits in each gender. A man is uniquely equipped to meet the needs of his wife, and a woman is uniquely gifted to meet the needs of her husband. Moreover, each one has specific attributes that serve to meet the needs of the children that come into the family as a result of the couple’s sexual union. Every child needs both a mother and a father. Certainly single parent homes exist, and we credit single moms and single dads with all they do to effectively rear their children. Even so, a woman cannot be a dad, nor can a man be a mother.
Copyright © 2015 by B. Nathaniel Sullivan. All Rights Reserved.
Unless otherwise indicated, Scripture has been taken from the New King James Version®. Copyright © 1982 by Thomas Nelson, Inc. Used by permission. All rights reserved.
1Ryan T. Anderson, Truth Overruled: The Future of Marriage and Religious Freedom, (Kindle Edition: Regnery, 2015), loc. 411.
2Charles Colson with Anne Morse, My Final Word, (Grand Rapids: Zondervan, 2015), 142.
3Walt Larimore, MD, and Barb Larimore, His Brain, Her Brain: How Divinely Designed Differences Can Strengthen Your Marriage, (Grand Rapids: Zondervan, 2008).