Ezekiel 23:9-10

The Lord had turned her over to the Assyrians whom she had proved unfaithful with in 722 B.C. They abused her and even murdered her so that she had become infamous for her sins (cf. Proverbs 1:31; Romans 1:24-32). The name "Jezebel" evokes similar disgust even today.

"Infidelity in marriage was taken very seriously in ancient Israel. Adultery and prostitution were both odious to God and punishable by death, as several passages in Leviticus (Leviticus 19:29; Leviticus 20:10; Leviticus 21:9) and Deuteronomy (Deuteronomy 22:21-22; Deuteronomy 23:17) indicate." [Note: Stuart, p. 222.]