Synopsis of the Books of the Bible, by John Nelson Darby, [1857-62], at sacred-texts.com
Psalm 4 differs in this respect from Psalm 3, of which we shall see other examples, that it is not simple confidence, but appeals to righteousness against the sons of men, who turn all the glory that belongs to the people of Jehovah, and especially to their king, into shame; but Jehovah has chosen the godly. The light of Jehovah's countenance is his resource. In Psa 3:4, and Psa 4:1, the experienced mercy of Jehovah is referred to.