(7) For as he thinks in his heart, so is he.
” Eat and drink!” he says to you,
But his heart is not with you.
“You are what you eat” is a common expression. Our physical bodies certainly use what we eat as energy and raw material for new tissue. But this adage is not entirely true. Jesus says in Mark 7:15-16, “There is nothing that enters a man from outside which can defile him; but the things which come out of him, those are the things that defile a man. If anyone has ears to hear, let him hear!” Jesus is explaining that we are not necessarily what we eat but what we think. Proverbs 23:7 backs Him up: “For as [a man] thinks in his heart, so is he.”
Even though we are what we think, we are not always what we think we are. Paul says in Romans 12:3 that a person should not “think of himself more highly than he ought to think.” He goes on to say that we should “think soberly,” that is, not that we should think little of ourselves but seriously and realistically. After all, we are ambassadors for Christ and kings and priests in training for God’s Kingdom. Nevertheless, we still fight that old, sinful nature, so we cannot allow ourselves to be puffed up due to our positions, abilities, gifts, or authority that God has given us.