Matthew 15:18
But the things, which proceed out of the mouth, come from the heart, and those defile a man.
Matthew 12:34
O race of vipers, how can ye speak good things, who are yourselves so wicked? for out of the abundance of the heart the mouth speaketh.
Matthew 15:11
not that which goeth into the mouth defileth the man; but that which cometh out of the mouth, this polluteth the man.
James 3:6-10
And the tongue is a fire, a world of iniquity: so is the tongue among our several parts, defiling the whole body, inflaming the course of nature, and is set on fire by hell.
Luke 19:22
But he said to him, Out of thy own mouth will I judge thee, thou wicked servant, Thou knewest that I am an austere man, taking up what I laid not down, and reaping what I did not sow;
Revelation 13:5-6
And there was given him a mouth speaking great and blasphemous things, and power was given him to make war forty two months.