Leviticus 15:33
of a woman in her menstrual period, of any male or female who has a discharge, and of a man who lies with an unclean woman."

Leviticus 20:18
If a man lies with a menstruating woman and has sexual relations with her, he has exposed the source of her flow, and she has uncovered the source of her blood. Both of them must be cut off from their people.

Ezekiel 18:6
He does not eat at the mountain or look to the idols of the house of Israel. He does not defile his neighbor's wife or approach a woman during her period.

Ezekiel 22:10
In you they have uncovered the nakedness of their fathers; in you they violate women during their impurity.

1 Thessalonians 5:22
Abstain from every form of evil.

Hebrews 13:4
Marriage should be honored by all and the marriage bed kept undefiled, for God will judge the sexually immoral and adulterers.

1 Peter 2:11
Beloved, I urge you as foreigners and exiles, to abstain from the desires of the flesh, which war against your soul.