Last month, we introduced a number of songs at the Together for the Gospel conference in Louisville, KY. O Great God was one of them. I originally wrote the song for our album, Valley of Vision, a collection of songs based on The Valley of Vision: A Collection of Puritan Prayers and Devotions. It comes from the prayer, “Regeneration,” that begins: Occupy the throne of my heart, take full possession and reign supreme, lay low every rebel lust, let no vile passion resist they holy war; manifest thy mighty power, and make me thine for ever. Thou art worthy to be praised with my every breath, loved with my every faculty of soul served …