Jesus said, “What comes out of the mouth proceeds from the heart…out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false witness, slander” (Matthew 15:18-19).
Why is the heart so important? Because the issues of life, our actions, works, pursuits, all proceed from the heart. What we do in word and deed is first of all a product of what we are on the inside.
Your heart as a Christian, is like a gated community with enemies on the outside. There are all the temptations of the world, the flesh and the devil that come from outside. These are like enemies outside the gated community, and you need to guard your heart against them. Keep the gates closed to anyone or anything that would lead you on a destructive path.
Your heart is also the warehouse in which you hide all your treasures. What you put into your heart is what will come out.
Solomon explains this in Proverbs 4:23 by warning to “Keep your heart with all diligence for out of it are the issues of life”.
If you want a heart that is good, a wellspring of life, then you need to take care what flows into it. We need to pay attention to our Father’s word: we need to listen closely to it, we need to fix our eyes on it. Above all, we need to let it flow into our hearts.
Proverbs is clear, as is the rest of the Bible: we need to keep God’s words in our heart, at the core of our being. Let them penetrate to the centre. Let them fill up the spring of life in you. Guard your heart: take care what flows into it.
When did you last examine your life? When did you last test the quality of what flows from your heart? What do you think you will find if you do it today?