Matthew 15:18

18 But the words you speak come from the heart—that’s what defiles you.

Matthew 15:18 Meaning and Commentary

Matthew 15:18

But those things which proceed out of the mouth
Meaning not material things, as spittle, vomit but, as it follows, which

come forth from the heart:
are first conceived and formed there, and then come forth from thence, and are expressed by the mouth; as all idle words, foolish talking, filthy jesting, unsavoury communication, and every word that is rotten and corrupt, or which is done in the life and conversation;

and they defile the man:
the heart is the corrupt fountain from whence all moral defilement flows; and sinful words and actions are the impure streams, which spring from thence, and increase the moral pollution of human nature.

Matthew 15:18 In-Context

16 “Don’t you understand yet?” Jesus asked.
17 “Anything you eat passes through the stomach and then goes into the sewer.
18 But the words you speak come from the heart—that’s what defiles you.
19 For from the heart come evil thoughts, murder, adultery, all sexual immorality, theft, lying, and slander.
20 These are what defile you. Eating with unwashed hands will never defile you.”