If you haven’t heard it from Lady Gaga, you’ve heard it from those who struggle with (or embrace) homosexuality: “I was born this way.” Do you believe them? The catchphrase might match your theology more than you think. In a Christian worldview, the “born this way” theory fits squarely into the doctrine of original sin—the belief that we all inherited a sinful nature because of Adam’s sin. King David sings of being “brought forth in...