A thanksgiving for blessings received, ver. 1-6. An expression of confidence in God, ver. 7-13. To the chief musician, A psalm of David. Title of the psalm. Of David - The subject of this psalm is the same with the former, both being made for the peoples use, concerning the king. Only the prayers there used, are here turned into praises, for the blessings received in answer to their prayers. And as David was an illustrious type of Christ, so in many of these expressions he looks beyond himself to Christ, in whom they are properly, and fully accomplished.