Psalm 40:3a (NRSVue) - He put a new song in my mouth, a song of praise to our God.Psalm 40 encompasses two themes.It is a psalm of thanksgiving for deliverance.It is also a prayer for help. Yet both share a common root.God delivers and is a source of help because He is eternal and unchanging.Paul, in his letter to the Ephesians, reminds his readers that they are to change.Paul discusses the old life and the new life.Paul reminds them, and us, we need renewal.Ephesians 4:23 (NRSVue) - and to be renewed in the spirit of your mindsBut this renewal is only possible because God is eternal and...