This Psalm is called the last of David's Psalms; (which are called prayers, because they consist very much of prayers;) either,
1. The last of that part or book of the Psalms, which reached from the beginning of the Psalms hitherto, whereof the far greatest number were composed by David, and all of them digested into this order; the rest of which follow, being collected by some other holy man or men of God after David's death, and composed part by David, and part by other prophets. Or rather,
2. The last Psalm which David composed; for this was done but a little before his death, of which see the first note on this Psalm.