James 3:8-10 KJV:
8 – But the tongue can no man tame; it is an unruly evil, full of deadly poison.
9 – Therewith bless we God, even the Father; and therewith curse we men, which are made after the similitude of God.
10 – Out of the same mouth proceedeth blessing and cursing. My brethren, these things ought not so to be.