³⁴ O generation of vipers, how can you speak good things, whereas you are evil? for out of the abundance of the heart the mouth speaketh.

¹⁸ But the things which proceed out of the mouth, come forth from the heart, and those things defile a man.

¹⁹ For from the heart come forth evil thoughts, murders, adulteries, fornications, thefts, false testimonies, blasphemies.