'Impure' in the Bible

If she bears a female child, she will be impure fourteen days as during her menstrual flow, and she will remain sixty-six days in blood purity.

‘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.

The priest shall offer the one for a sin offering and the other for a burnt offering. So the priest shall make atonement on her behalf before the Lord because of her impure discharge.’

And thou shalt not approach unto a woman to uncover her nakedness, as long as she is impure by her uncleanness.

Say to them, 'Throughout your generations, if any man from all your descendants approaches the holy offerings which the Israelites consecrate to the Lord while he is impure, that person must be cut off from before me. I am the Lord.