“Sticks and stones may break my bones, but words will never hurt me.” So goes the old children’s rhyme that tries to convince children to ignore taunts. Whatever good the rhyme may accomplish is countered by selling it with some big lies. First, every adult knows how much words can hurt. Second, God uses our words as a measure of our hearts. Oh my!
15 Peter said, “Explain the parable to us.”
16 “Are you still so dull?” Jesus asked them. 17 “Don’t you see that whatever enters the mouth goes into the stomach and then out of the body? 18 But the things that come out of a persons mouth come from the heart, and these defile them. 19 For out of the heart come evil thoughts murder, adultery, sexual immorality, theft, false testimony, slander. 20 These are what defile a person; but eating with unwashed hands does not defile them.”
Peter reminds me of certain Christian adults living in 2015 in that he heard what Jesus said (in verse 11) but made little to no effort to understand it on his own (verse 15). Nor did Jesus let the matter go by unremarked!
Verse 16 is a hammer stroke against spiritual timidity and laziness. The first word out of Jesus mouth is the rare Greek adverb akmen meaning “even yet.” The following “you” is plural, showing that Peter is not alone, but the crusher is the adjective meaning uncomprehending. Even after being with Jesus for an extended period, they still lack a keen spiritual sense! How did Jesus find this out? By the words that came out of Peter’s mouth. That fact is ironic in light of what Jesus teaches them next.
The question Jesus asks in verse 17 expects a “yes” answer. Yes, all the disciples know that food simply passes through the body and then leaves it. The same is true of wine, water and other things taken in through the mouth. They have no bearing on the persons defilement status because they tell us nothing about the person.
Jesus next reveals the actual source of personal defilement: the heart as revealed by the things that come out of a persons mouth (verse 18). While NIV has Jesus saying that the heart is the source of evil thoughts (verse 19), the Greek word can include reasoning, intentions and plans as well. Further, Jesus qualifies these thoughts by calling them wicked or vicious. This description plainly fits when we learn that these thoughts include murder, adultery, sexual immorality, theft, false testimony and slander. For example, the religious leaders are already planning to murder Jesus and have slandered him by claiming that his miraculous acts are empowered by Satan rather than the Holy Spirit.
At last, Jesus returns to the original accusation against his disciples (verse 20). They are innocent of defilement because eating with unwashed hands can only affect what goes into the mouth and later emerges. Compared to the religious leaders, their hearts are pure even if their hands are not!
Copyright 2015 by Barry Applewhite, Plano, Texas. All rights reserved worldwide. Material originally developed for Christ Fellowship, McKinney, Texas. Used by permission.
 To clarify, I am certainly not talking about fellow members of the Life Group I belong to, who continually show that they are seeking to know God better! They inspire all who visit our group.