Albert Barnes' Bible Commentary
Psalms 143 - Introduction
This psalm also is entitled “A Psalm of David.” There is, however, no intimation in the title as to the time or the occasion on which it was composed. In the Septuagint version, and the Latin Vulgate, it is said to have been written “when Absalom his son persecuted him.” There is nothing in the psalm inconsistent with this supposition, nor is there anything which necessarily restricts the application to that period of life. It would seem most natural that it should refer to the same trials as the previous psalm; and the sentiments in it are as applicable to the persecutions under Saul as to the rebellion of Absalom. There can be no doubt that it was composed when he was in danger and in trouble on account of malignant and powerful enemies; and it is of the same general character as many in the collection that were composed on those occasions. It is a psalm written in trouble; and, in a world like this, there will be always many hearts that can fully sympathize with the sentiments which are expressed in it.