John Gill Commentary Psalms 55:16

"As for me, I will call upon God; And Jehovah will save me." — Psalms 55:16 (ASV)

As for me, I will call upon God
Not upon a creature, on idols and images, on angels or saints departed; but upon God, in his time of trouble, for salvation and deliverance from enemies; who is able to save. This is to be understood of calling upon God in prayer; as (Psalms 55:17) explains it, and the Targum here renders it; though sometimes invocation of the name of God takes in the whole of divine worship;

and the Lord shall save me ;
which confidence was founded partly upon his promise to deliver such that call upon him in the day of trouble, (Psalms 50:15) ; and partly upon his power, whose hand is not shortened that it cannot save. The Targum is,

``the Word of the Lord shall redeem me.''