Romans 3:13
their throat is an open sepulchre; with their tongues they used deceit; the poison of asps is under their lips;
Matthew 12:34-35
"Broods of vipers! how can ye speak good things, being yourselves evil? For, out of the abundance of the heart, the mouth speaks.
Matthew 23:27-28
"Woe to you scribes and Pharisees, hypocrites! because ye are like white-washed sepulchres, which outwardly, indeed, appear beautiful, but within are full of bones of the dead and of all uncleanness.
Romans 3:4
May it not be! But let God be true, and every man a liar; as it has been written, "That Thou mayest be justified in Thy words; and mayest overcome, when Thou judgest."
James 3:5-8
So also the tongue is a little member, and boasts great things. Behold, how small a fire kindles how great a forest!