Leviticus 20:13
If a man also lie with mankind, as he lieth with a woman, both of them have committed an abomination: they shall surely be put to death; their blood shall be upon them.
Cross-reference
Leviticus 18:22 is the original prohibition of male homosexual acts, now repeated in Leviticus 20:13 with the death penalty.
Genesis 19:5 recounts the men of Sodom demanding sex with Lot's visitors — the very act Leviticus 20:13 condemns as an abomination.
Judges 19:22 describes men of Gibeah demanding to rape a male visitor — another narrative example of the homosexual acts condemned in Leviticus 20:13.
Romans 1:27 condemns male homosexual acts as 'shameful' — the NT counterpart to Leviticus 20:13's death penalty.
1 Corinthians 6:9 uses the Greek word 'arsenokoitai' (from Leviticus 20:13 LXX) to list homosexual offenders excluded from the kingdom.
1 Timothy 1:10 also uses 'arsenokoitai' — the same term derived from Leviticus 20:13 — to condemn homosexual behavior.
Jude 1:7 cites Sodom's sexual perversion as a warning — the same sin Leviticus 20:13 legislates against.
Genesis 19:7 records Lot pleading with Sodom's men to stop homosexual rape — the same wickedness that Leviticus 20:13 condemns as an abomination punishable by death.
Deuteronomy 23:17 prohibits male cult prostitution, a related form of the sexual sin condemned in Leviticus 20:13.