This psalm is adapted to a state of affliction; it is copied almost word for word from the fortieth, and, some think for that reason, is entitled, "a psalm to bring to remembrance;" for it may be of use sometimes to pray over the prayers we have formerly made to God upon similar occasions, which may be done with new affections. David here prays that God would send, I. Help to himself (Psa 70:1, Psa 70:5). II. Shame to his enemies (Psa 70:2, Psa 70:3). III. Joy to his friends (Psa 70:4). These five verses were the last five verses of Ps. 40. He seems to have intended this short prayer to be both for himself and us a salve for every sore, and therefore to be always in mind; and in singing we may apply it to our particular troubles, whatever they are. To the chief musician. A psalm of David, to bring to remembrance.