Hear my prayer, O Lord, give ear - See Psalm 4:1, note; Psalm 5:1, note.
In thy faithfulness answer me - That is, Show thy faithfulness to thy promises. God had made gracious promises to David (compare Psalm 31:1. In thy disposition to do right; to vindicate a righteous cause; to interpose when wrong is done. We, though sinners before God, may feel that our cause is a just one as toward our fellowmen, and, when wronged, we may ask God to interpose, as a righteous God, in our behalf. We cannot, however, ask him to save us on the ground of our righteousness toward him, for we have no such righteousness. See Psalm 143:2.