He brought me forth also into a large place; he delivered me, because he delighted in me.
He delivered me, because he delighted in me - on the ground of the righteousness in me, which forms the subject of the next part (Psalms 18:20-27).
The section Psalms 18:20-27 expands the last words of Psalms 18:19, "He delighted in me." Herein salvation is set forth as inseparable from righteousness: everyone that hath the righteousness of a sincere walk with God by faith has a sure warrant for salvation; none without this righteousness has a well-grounded hope of it.