Psalm 103, attributed in the superscription to David, is a psalm of praise for the wonderful goodness of God directed toward His people. David begins the psalm by talking with himself, demanding that his whole being “bless” the Lord (verses 1-2); thereafter drawing attention to several blessings (verses 3-6). The sermon focuses on meaning of that short but powerful phrase “bless the Lord” as what David recognized he needed to do and the importance of God’s people doing the same thing.