'Unclean' in the Bible

For certain men have come among you secretly, marked out before in the holy Writings for this evil fate, men without the fear of God, turning his grace into an unclean thing, and false to our only Master and Lord, Jesus Christ.

Even as Sodom and Gomorrah, and the towns near them, having like these, given themselves up to unclean desires and gone after strange flesh, have been made an example, undergoing the punishment of eternal fire.

In the same way these dreamers make the flesh unclean, having no respect for authorities, and say evil of rulers.

And to some give salvation, pulling them out of the fire; and on some have mercy with fear, hating even the clothing which is made unclean by the flesh.