'Unclean' in the Bible

For which cause, Come out from among them, and be separate, says the Lord, and let no unclean thing come near you; and I will take you for myself,

And that when I come again, my God may put me to shame among you, and I may have grief for those who have done wrong before and have had no regret for their unclean ways, and for the evil desires of the flesh to which they have given way.