He tells us the occasion for the writing of the Psalm; possibly 1 Samuel 31; 2 Samuel 1) and enthronement (2 Samuel 2-5). Similarly recorded in 2 Samuel 22.
David praises the God of his deliverance. David commits to loving the LORD and calling upon Him for who He was and for all He had done for him.
David describes the dramatic deliverance God brought to him. It was personal thru earthquakes, the righteous anger of God, smoke and fire, and the personal intervention of God.