Romans 3:13
Their throat is an open sepulchre; with their tongues they have spoken craftily; the poison of asps is under their lips:
Matthew 12:34-35
Ye broods of vipers, how can ye speak good things, yourselves being wicked? for out of the abundance of the heart the mouth speaketh.
Matthew 23:27-28
Wo unto you, scribes and Pharisees, hypocrites! for ye resemble tombs whitewashed, which outwardly indeed appear specious, but within are full of dead men's bones, and all manner of impurity.
Romans 3:4
God forbid: but let God be true, though every man were a liar; as it is written, "That thou mayest be acknowledged just in thy sayings, and overcome when thou art judged."
James 3:5-8
So also the tongue is a little member, and proudly vaunts. Behold how great a pile of wood, a little fire kindleth!