Speak to the people of Israel, saying: If a woman conceives and bears a male child, she shall be ceremonially unclean seven days; as at the time of her menstruation, she shall be unclean.
God blessed them, and God said to them, “Be fruitful and multiply, and fill the earth and subdue it; and have dominion over the fish of the sea and over the birds of the air and over every living thing that moves upon the earth.”
To the woman he said, “I will greatly increase your pangs in childbearing; in pain you shall bring forth children, yet your desire shall be for your husband, and he shall rule over you.”
So David sent messengers to get her, and she came to him, and he lay with her. (Now she was purifying herself after her period.) Then she returned to her house.
When a woman has a discharge of blood that is her regular discharge from her body, she shall be in her impurity for seven days, and whoever touches her shall be unclean until the evening.
Or when you touch human uncleanness—any uncleanness by which one can become unclean—and are unaware of it, when you come to know it, you shall be guilty.