Christianity
Many historic Catholic, Eastern Orthodox, and conservative Protestant churches distinguish orientation from behavior: same-sex attraction itself is generally not treated as sinful, while same-sex sexual relationships are. Sexual intimacy is understood as belonging within marriage between a man and a woman. Commonly cited passages include Genesis 19, Leviticus 18:22 and 20:13, Romans 1:26–27, 1 Corinthians 6:9–11, and 1 Timothy 1:9–10.
Many affirming Christians read the relevant texts as addressing exploitation, idolatry, abuse, or other ancient practices rather than loving, committed same-sex relationships. They place greater ethical weight on faithfulness, covenant, and love. Christian mysticism emphasizes union with God, purification of the heart, compassion, humility, and love, asking whether a life moves toward or away from divine love; it has not historically produced one alternative sexual ethic.