“Be filled with the Spirit, addressing one another in psalms and hymns and spiritual songs, singing and making melody to the Lord with your heart” (Ephesians 5:18-19)
Humanity’s original song of praise was distorted when Satan whispered his lies into the ears of the first human couple, Adam and Eve, and they believed his words. Since then, every human is born with a heart that is naturally tuned to Satan’s lies and blasphemy. If these take root in us, our mouth will also speak evil things like false testimony and slander (Matthew 15:18-19). The only cure is to let the Holy Spirit of truth dwell in us and clean us. Only when we are filled with this Spirit, we can sing with our heart, be thankful to God the Father and be humble in our relationships with others (Ephesians 5:18-21). For as Jesus says in Luke 6:45, what comes out of our mouth reveals what is in our heart. A sinful and hardened heart can’t glorify God. We can only do this when our heart has been healed and purified.
David had this experience when the Lord God saved him: “He put a new song in my mouth, a hymn of praise to our God” (Psalm 40:3). His heart was full of praise because the Lord taught him how to sing!
What comes out of your heart and mouth?