" Permit me to bypass the entire nature vs. nurture “is gender really built-in?” debate with one simple observation: Men and women are made in the image of God as men or as women. “So God created man in his own image, in the image of God he created him; male and female he created them” (Gen. 1:27). Now, we know God doesn’t have a body, so the uniqueness can’t be physical. Gender simply must be at the level of the soul, in the deep and everlasting places within us. God doesn’t make generic people; he makes something very distinct—a man or a woman. In other words, there is a masculine heart and a feminine heart, which in their own ways reflect or portray to the world God’s heart. "

― John Eldredge , Wild at Heart: Discovering the Secret of a Man's Soul