Psalm 62:3-5 Because thy lovingkindness is better than life, my lips shall praise thee. Thus will I bless thee while I live; I will lift up my hands in thy name. My soul shall be satisfied as with marrow and fatness, and my mouth shall praise thee with joyful lips.
David responds to the Lord with praise and blessing to His loving and glorious name, using his lips and hands and mouth to praise the Lord. He vows to bless (say good things about) the Lord as long as he is alive. Dead men can’t praise God, but believers will be resurrected to an eternity of praise in heaven.
The cause of such continual praise and joy is the lovingkindness (faithful love) of God. God’s life, and His love, is better than the corrupted, temporal life in a sinful world. It demands praise. It is awesome that God’s eternal life lives within and next to our sinful, mortal life. Therefore, we praise the Lord.
The result of His abiding life in us is that we are satisfied with the best (marrow) and with abundance (fatness). Therefore we praise. Praise comes from faith, and praise produces more faith, which results in enjoying God forever. We respond with more praise and blessing, which brings more joy and abundant life, which prompts more praise, which brings…etc., etc., in a blessed circle.