Found this good and relevant article -
Toward A Graciously Historic Sexual Ethic by Scott Sauls:(Via The Gospel Coalition):
The centuries-old, universal consensus among Christians, Jews, and Muslims—that God gave sex for marriage between one man and one woman—is being questioned not only by secular society, but within Christianity itself. Individuals, churches, and even whole denominations are shifting in their views and practices. Many contest the long-held belief that porneia—the New Testament Greek term for all sexual activity outside of marriage between one man and one woman—is synonymous with “immorality.” Ours is a different age, the Western (and mostly white and well-educated) “progressive Christian” says. Biblical prohibitions against divorce, unmarried cohabitation, and same-sex relationships, they say, were written for situations unique to the first century but shouldn’t apply to our modern context. Indeed, those who are unpersuaded by the new interpretations are increasingly viewed as unenlightened at best and bigoted at worst.
So what do we make of this new cultural landscape? How do we understand the Scriptures on this matter? And what should we do with that understanding?
Have We Misunderstood Scripture?
Expressions of sexuality that were once seen as taboo have now become mainstream. As friends and family “come out” with news of a pending divorce or a same-sex or cohabiting hetero relationship, Christians—especially when friendships and family ties hang in the balance—feel pressed to sympathize instead of condemn, to support instead of separate, to affirm instead of deny. To reinforce this instinct, sexual minorities are often compared to victims of slavery. Christians eventually shifted on slavery because they finally saw slavery was biblically wrong, the thinking goes. This is no different. Sexual minorities are the new oppressed minority.
This is a difficult leap, however, since every reference in Scripture to sex outside of heterosexual marriage is negative. The pro-slavery mindset is repudiated by Paul’s letter to Philemon, a slaveowner commanded to stop treating Onesimus like a slave and instead as a brother. No such parallel pushes against the historic Christian view of sexuality.
As Scripture unfolds from Old Testament to New, we see a progressive tone in the way it dignifies and empowers women, ethnic minorities, the enslaved, the infirm, and the oppressed. But when it comes to sex and marriage, we actually see a more conservative tone. Jesus reaffirms the male-female, one-flesh union in marriage. Qualified elders must either be single and chaste like Paul and Jesus or be the “husband of one wife” (that is, one-woman men). Jesus restores dignity to an adulteress and then tells her that if she’s going to identify as his follower she must stop committing adultery. Unlike Philemon and the slave issue, then, there is no hint in Scripture of “emancipation” for sexual relationships—including committed and monogamous ones—outside the male-female marital union.
This teaching is admittedly unpopular in our late modern times. Yet Scripture shows no interest in being popular or relevant—that is, in being adapted, revised, or censored to align with ever-shifting times. We must remain countercultural wherever the culture and the truth are at odds. It is this posture that makes Christians truly relevant in the culture.
Counterculture for the Healing of Culture
What’s the way forward, then, for Christians? I believe the way of grace and truth avoids the polar extremes of both the Pharisees and the Sadducees.