Donald Fortson writes at Christianity Today:
But as a historian, I believe it is a mistake to focus our attention on how the church has dealt with this issue over the past three or four decades. The long view that church history offers is often the clearest perspective of all.
And church history is crystal clear: Homosexual practice has been affirmed nowhere, never, by no one in the history of Christianity. The church fathers insisted that doctrine and practice must be tested by Holy Scripture. In addition to careful exegesis, another test was catholicity, that is, what has been the universally accepted scriptural interpretation passed down in the church. When novel teachings were shown to fail both the careful scrutiny of Scripture and the consensus of the orthodox Fathers, heretical ideas were doubly condemned. In the 400s, Vincent of Lerins expressed it this way:
… if anyone wishes, to detect the deceits of heretics that arise and to avoid their snares and to keep healthy and sound in a healthy faith, we ought, with the Lord’s help, to fortify our faith in a twofold manner, firstly that is, by the authority of God’s Law [Scripture], then by the tradition of the Catholic [universal] Church. …[W]e take the greatest care to hold that which has been believed everywhere, always, and by all.
Christianity is a tradition; it is a faith with a particular ethos, set of beliefs and practices handed on from generation to generation. The Christian tradition may be understood as the history of what God’s people have believed and how they have lived based upon the Word of God. This tradition is not only a collection of accepted doctrines but also a set of lifestyle expectations for a follower of Christ. One of the primary things handed down in the Christian church over the centuries is a consistent set of lifestyle ethics including specific directives about sexual behavior. The church of every generation from the time of the apostles has condemned sexual sin as unbecoming a disciple of Christ. At no point have any orthodox Christian teachers ever suggested that one’s sexual practices may deviate from biblical standards.
Concerning homosexuality there has been absolute unanimity in church history; sexual intimacy between persons of the same gender has never been recognized as legitimate behavior for a Christian. One finds no examples of orthodox teachers who suggested that homosexual activity could be acceptable in God’s sight under any circumstances. Revisionist biblical interpretations that purport to support homosexual practice are typically rooted in novel hermeneutical principles applied to Scripture, which produce bizarre interpretations of the Bible held nowhere, never, by no one.