He brought me forth also into a large place - Instead of being hemmed in by enemies, and straitened in my troubles, so that I seemed to have no room to move, he brought me into a place where I had ample room, and where I could act freely. Compare the note at Psalms 4:1.
He delivered me - He rescued me from my enemies and my troubles.
Because he delighted in me - He saw that my cause was just, and he had favor toward me.