3 Bible Verses about People Being Polluted

"Woe unto you! for you are like the tombs which are hidden, and men walk over them unsuspecting."

Look carefully that there be no one who falls back from the grace of God; that no root of bitterness springs up to trouble you, and by its means many become defiled.

And the tongue is a fire; it is a very world of iniquity among our members, defiling the whole body, and setting on fire the wheel of nature, and is itself set on fire by hell.