'Impurity' in the Bible

and has not eaten on the mountains, neither has lifted up his eyes to the idols of the house of Israel, neither has defiled his neighbor's wife, neither has come near to a woman in her impurity,

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

Son of man, when the house of Israel lived in their own land, they defiled it by their way and by their doings: their way before me was as the uncleanness of a woman in her impurity.