Christian comedian John Crist has become known for the phrase “check your heart.” For example, when you order your meal at the counter but say “I’ll just have a water”, but when you get to the machine you fill up your cup with Sprite. Hmm… check your heart! He is not suggesting that you check the muscle that pumps blood through your arteries and veins. He is talking about your spiritual heart.
Proverbs 23:7 says “For as he thinks in his heart, so is he: Eat and drink, said he to you; but his heart is not with you.” The Passion Translation puts it like this “For as he thinks within himself, so is he. He will grudgingly say, ‘Go ahead and eat all you want,’ but in his heart he resents the fact that he has to pay for your meal.” Basically, the words of your mouth and your heart need to be aligned. Your words will mean nothing if your heart holds a grudge.
When you think about doing something bad to a person, it’s just as bad as you doing it. If your heart is clean then your lips speak clean words but when your heart is dirty all that you share is dirty. You might be able to hide it for a while but eventually it will come out. We need to pray the same prayer of David in Psalm 51:10, “Create in me a clean heart, O God, and renew a right spirit within me.”
Proverbs 4:23 says “Above all else, guard your heart, for it is the wellspring of life.” The writer wants us to understand that our first priority is to guard our spiritual heart because our whole life flows out of our heart. Luke 6:45 says, “A good man brings good things out of the good stored up in his heart, and an evil man brings evil things out of the evil stored up in his heart. For the mouth speaks what the heart is full of.”
Make sure you are checking your heart regularly… and not with a stethoscope but with God’s word!