Matthew 5:27-30

“Idolatry carries in it the seed of a good impulse—the impulse to worship our Maker. Idolatry is that good impulse wrongly directed to disastrous ends. Like idolatry, fornication is a wrong reflection of a right creational impulse. We were made for sex. And so premarital sex tells a partial truth; that's why it resonates with something. But partial truths are destructive. They push us to created goods wrongly lived.”—Lauren Winner, Real Sex

“Sex is for fully committed relationships because it is to be a foretaste of the joy that comes from being in complete union with God. The most rapturous love between a man and woman is only a hint of God’s love for us (Rom. 7:1–6; Eph. 5:21–33). On the one hand, this analogy anticipates the joy of meeting God face to face. But on the other hand, we realize that sex cannot completely fill the cosmic need our souls seek and that only the beatific vision will bring our loneliness toan end.”—Tim Keller, “The Gospel and Sex”