The Bible urges us to guard our hearts, for our actions flow from what is in our hearts (Proverbs 4:23). In our reading today, Jesus teaches that whatever fills the heart overflows into our words and actions. He points out that if there is wickedness in our words, that is the result of what is rooted in our hearts.

It is so easy to harbor negative or destructive feelings in our hearts. Biblical history is full of stories of bitterness, envy, and anger that caused serious problems in families and among God's people. Cain, Adam's first son, was bitter about how Abel’s offering was received with God’s favor. Rather than dealing with his anger, he let bitterness and envious anger rule his heart. Because he could not quench this fire in his heart, the fruit followed: he committed the first murder (Genesis 4). In another story, Joseph's brothers were so blinded by their jealousy of Joseph that they sold him into slavery (Genesis 37). These are just two examples about anger causing serious problems in people’s lives.

In the history of the church, we see divisions without justifiable causes; conflicts and individual interests have often been the root of these problems. As adopted children of God, we are already seated with Christ in heavenly places, but we must daily examine our attitudes and motives to see if our desires match with who we are in Christ.