Two great articles:

Steve Holmes in the UK —

“This story of warped desires being disciplined and re-ordered seems to me to be somewhere near the heart of a biblical theology of sexuality. The breaking of the proper relationship of mutual love and companionship between husband and wife is explicitly cited as a result of the Fall (Genesis 3:16); after this, while the remnants of God’s good gift of sexuality will occasionally be celebrated (as in the Song of Songs), the broader biblical witness is more about difficult and demanding sexual disciplines. When Jesus commends faithful monogamous marriage, his disciples are simply incredulous – this calling is impossible! (Matthew 19:10); when Paul gives advice about marriage and singleness, it is not about fulfillment, but about the disciplining of desires (1 Corinthians 7:1-9); … In later Christian tradition, marriage was understood as an ascetic practice, a way of training oneself to be fit for heaven.”

and some older thoughts from Stan Hauerwas

“The difficulty, therefore, is that Christians, when they approach this issue, no longer know what marriage is. For centuries, Christians married people who didn’t know one another until the marriage ceremony, and we knew they were going to have sex that night. They didn’t know one another. Where does all this love stuff come from? They could have sex because they were married.

“Now, when marriage becomes a mutually enhancing arrangement until something goes wrong, then it makes no sense at all to oppose homosexual marriages. If marriage is a calling that makes promises of lifelong monogamous fidelity in which children are welcomed, then we’ve got a problem. But we can’t even get to a discussion there, because Christians no longer practice Christian marriage.”