Leviticus 15:24

Female Bodily Discharges

²³ Anyone touching anything on the bed or on the thing on which she has been seated, will be unclean till evening. ²⁴ And if any man has sex relations with her so that her blood comes on him, he will be unclean for seven days and every bed on which he has been resting will be unclean. ²⁵ And if a woman has a flow of blood for a long time, not at the time when she generally has it, or if the flow goes on longer than the normal time, she will be unclean while the flow of blood goes on, as she is at other normal times.

Sexual Relations

Leviticus 20:18

And if a man has sex relations with a woman at the time when she is unwell, he has seen her fountain and she has let the fountain of her blood be uncovered, and the two of them are to be cut off from among their people.

Leviticus 18:19

And you may not go near a woman or have sex relations with her when she is unclean, at her regular time.

Ezekiel 18:6

And has not taken flesh with the blood for food, or given worship to the images of the children of Israel; if he has not had connection with his neighbour's wife, or come near to a woman at the time when she is unclean;

Leviticus 15:33

And for her who has a flow of blood, and for any man or woman who has an unclean flow, and for him who has sex relations with a woman when she is unclean.

Ezekiel 22:10

In you they have let the shame of their fathers be seen; in you they have done wrong to a woman at the time when she was unclean.

1 Thessalonians 5:22

Keep from every form of evil.

Hebrews 13:4

Let married life be honoured among all of you and not made unclean; for men untrue in married life will be judged by God.

1 Peter 2:11

My loved ones, I make this request with all my heart, that, as those for whom this world is a strange country, you will keep yourselves from the desires of the flesh which make war against the soul;