Leviticus 20:21 directly parallels this prohibition, adding the penalty of childlessness for taking a brother's wife.

Deuteronomy 25:5 prescribes levirate marriage — the one exception to this ban, requiring a brother to marry his deceased brother's widow.

Matthew 14:3 records Herod's marriage to his brother Philip's wife — a direct violation of this prohibition, leading to John's arrest.

In Matthew 14:4, John the Baptist explicitly cites this prohibition as unlawful, rebuking Herod for taking his brother's wife.

Matthew 22:24 quotes Moses' command for levirate marriage — the specific exception that permits what is generally forbidden here.

Mark 6:17 similarly reports Herod's illicit marriage to Herodias, his brother's wife, violating this law.

Mark 12:19 recounts the Sadducees' question about levirate marriage — the legal exception to this prohibition.

Luke 3:19 adds that John rebuked Herod for taking his brother's wife — directly applying this prohibition as a moral standard.

Genesis 38:8 depicts the levirate duty to marry a brother's widow — the very relationship Leviticus 18:16 forbids, showing a specific exception under the law.

In Mark 6:18, John the Baptist directly cites this law to condemn Herod's marriage to his brother's wife.