Deliver me in thy righteousness - See the notes at Psalm 31:1. The first three verses of this psalm seem in fact to have been taken, with slight variations, from the first three verses of Ps. 31.
And cause me to escape - That is, from impending dangers; from the power of my enemies.
Incline thine ear unto me - In Psalm 31:2, this is, "Bow down thine ear to me." The idea is the same. See the notes at that place. Compare the notes at Psalm 17:6.
And save me - In Psalm 31:2, this is, "Deliver me speedily."

Deliver me in thy (b) righteousness, and cause me to escape: incline thine ear unto me, and save me.
(b) By declaring yourself true to your promises.

Deliver me in thy righteousness,.... By it, or "for the sake of it" (q); See Gill on Psalm 31:1;
and cause me to escape; present danger, and out of the hands of enemies, as well as wrath to come, and eternal death; which nothing but the righteousness of God can deliver from, or cause to escape;
incline thine ear unto me; or "bow it"; See Gill on Psalm 31:2;
and save me; out of all troubles and afflictions, and from wicked and unreasonable men.
(q) "propter justitiam tuam", Pagninus, Piscator; so Schmidt.