2 Samuel 22:3

the God of my rock, Deuteronomy 32:4, with reference to His unchangeable faithfulness; in Him will I trust. He is my Shield, covering him against the attacks of his enemies, and: the Horn of my salvation, yielding help and strength in overcoming the enemies, my high Tower, the inaccessible and safe stronghold, and my Refuge, my Savior; Thou savest me from violence. This is said of God by way of a general introduction.