The issue of a constitutional, genetically predisposed, homosexual orientation is a common ground used for the advancement of homosexual civil rights. However, genetic studies have shown that there is no sufficient evidence for a “gay gene” that biologically determines, or even influences, a homosexual disposition. Scientific studies have continually failed to provide sufficient evidence that genetics determines, or even seriously influence, sexual orientation (1, 2, 3). Instead, studies seem to suggest positively that biology does not cause homosexual desire (1, 2). Christian counselors and theologians, such as Ed Welch and Michael Grissanti notably, have argued well against the genetic view, citing the evidence from secular scientists themselves, while approaching the issue from a biblical perspective (1, 2).
Here is the real issue, however. Even if there is some genetic predisposition discovered, this fact would hold little relevance to the question of whether it is right or wrong, because our instinctive inclinations do not define morality—God does. So while homosexuality is not “natural” (it goes against God’s created order), there may very well be instinctive tendencies toward homosexuality in some people, just as some have “natural,” or instinctive inclinations toward anger, or arrogance, or selfishness, because different people struggle with different sinful inclinations, and our fallen bodies may well have an influence in that. The fact that some people are born with an instinctive tendency toward a particular sinful pattern does not mean, however, that what they feel strongly inclined toward is right and good. Dr. Ed Welch says that “Homosexuality is natural, but only in the sense that it is an expression of the sinful nature.” Ultimately, this discussion must continue to drive us back to the authority and sufficiency of God’s Word over man’s word.
But what about love? If two people of the same sex truly love each other, who are we to say they shouldn’t be together? God want’s us to be happy, right? Well, we’ll talk about that next time. In the meantime, here is a great resource for further study in this topic — much more thorough than I can be in three short posts.