Leviticus 15:24

Female Bodily Discharges

²³ Whether it be on the bed or on the thing on which she is sitting, when he touches it, he shall be unclean until evening. ²⁴ If a man actually lies with her so that her menstrual impurity is on him, he shall be unclean seven days, and every bed on which he lies shall be unclean. ²⁵ ‘Now if a woman has a discharge of her blood many days, not at the period of her menstrual impurity, or if she has a discharge beyond that period, all the days of her impure discharge she shall continue as though in her menstrual impurity; she is unclean.

Sexual Relations

Leviticus 20:18

If there is a man who lies with a menstruous woman and uncovers her nakedness, he has laid bare her flow, and she has exposed the flow of her blood; thus both of them shall be cut off from among their people.

Leviticus 18:19

‘Also you shall not approach a woman to uncover her nakedness during her menstrual impurity.

Ezekiel 18:6

and does not eat at the mountain shrines or lift up his eyes to the idols of the house of Israel, or defile his neighbor’s wife or approach a woman during her menstrual period—

Leviticus 15:33

and for the woman who is ill because of menstrual impurity, and for the one who has a discharge, whether a male or a female, or a man who lies with an unclean woman.

Ezekiel 22:10

In you they have uncovered their fathers’ nakedness; in you they have humbled her who was unclean in her menstrual impurity.

1 Thessalonians 5:22

abstain from every form of evil.

Hebrews 13:4

Marriage is to be held in honor among all, and the marriage bed is to be undefiled; for fornicators and adulterers God will judge.

1 Peter 2:11

Beloved, I urge you as aliens and strangers to abstain from fleshly lusts which wage war against the soul.