Why is sex so fascinating? That’s one question. But why pay any attention to what Christians believe about sex? That’s quite another. And yet the very fascination of sex points to a religious dimension. Sex and religion have always been hard to separate—from the gods and goddesses of the religions of the Ancient Near East onwards. This thought-provoking essay explores why sex is so fascinating, what God says about sex, and how Christians can respond to sex in our culture today.