David says of God that He is the God of our salvation. He called Him even though He didn't know about Christ as we know Him throughout the New Testament. This very Creator God would take upon Himself a human body and become our Lord Jesus for the purpose of saving us from our sins. There is a phrase in Hebrews 1:3. When He had by Himself purged our sins sat down on the right hand of the Majesty on high which fulfills Psalm 110:1. David again said the LORD said unto my Lord (mine to) sit at my right hand until I (God the Father) makes your enemies your footstool.