Jars of Clay's song "Come Thou Fount of Every Blessing" is a modern rendition of an old hymn that was first written by Robert Robinson in the 18th century. The song is a prayer to God, asking Him to "tune" our hearts to sing His grace and to lead us in a life of worship. The first verse speaks of God as the "Fount of every blessing," a source from which all good things flow. It asks God to help us express our gratitude for His mercy, which we can never fully comprehend. The second verse acknowledges that we are all sinners, and we need God's grace to keep us on the right path. The lyrics describe our hearts as "wandering," always prone to stray from God's love and grace. The singer asks God to "fetter" or tie us to Him, to keep us from wandering away. The last verse is a declaration of surrender to God. The singer offers their heart to God, asking Him to "seal it" and make it His own. The final line calls for God to prepare us for worship in His courts above, the ultimate destination for those who have been saved by His grace. Overall, the song is a beautiful expression of our need for God's grace and our deep desire to worship Him. It reminds us that our hearts are restless until they find their rest in God, and that true joy and peace come from being in His presence.