Romans 3:13
Their throats are just like open graves, with their tongues they have spoken treachery; the poison of asps is under their lips.
Matthew 12:34-35
You brood of vipers! How can you, wicked as you are, say anything that is good? For the mouth talks about the things that fill the heart.
Matthew 23:27-28
"A curse on you, you hypocritical scribes and Pharisees, for you are like white-washed tombs, which look beautiful on the outside, but inside are full of dead people's bones and everything that is unclean!
Romans 3:4
Not at all. Let God prove true, though every man be false! As the Scripture says, "That you may prove yourself upright in words you speak, and win your case when you go into court."
James 3:5-8
So the tongue, too, is a little organ but can boast of great achievements. See how a spark, ever so tiny, can set a vast forest on fire!