Leviticus 15 in the early church

And the LORD said to Moses and Aaron,

“Say to the Israelites, ‘When any man has a bodily discharge, the discharge is unclean.

Anyone who touches his bed must wash his clothes and bathe with water, and he will be unclean until evening.

When a man has an emission of semen, he must bathe his whole body with water, and he will be unclean until evening.

If a man lies with a woman and there is an emission of semen, both must bathe with water, and they will remain unclean until evening.

When a woman has a discharge consisting of blood from her body, she will be unclean due to her menstruation for seven days, and anyone who touches her will be unclean until evening.

If a man lies with her and her menstrual flow touches him, he will be unclean for seven days, and any bed on which he lies will become unclean.

When a woman has a discharge of her blood for many days at a time other than her menstrual period, or if it continues beyond her period, she will be unclean all the days of her unclean discharge, just as she is during the days of her menstruation.

You must keep the children of Israel separate from their uncleanness, so that they do not die by defiling My tabernacle, which is among them.