Albert Barnes Commentary Psalms 132:1

"Jehovah, remember for David All his affliction;" — Psalms 132:1 (ASV)

Lord, remember David - Remember his zeal, his labor, and his trials so that there might be a permanent place for your worship. Remember this so that his purpose in your cause may not be frustrated and so that the promises made to him may be accomplished.

And all his afflictions - The particular trial referred to here was his care and toil so that there might be a settled home for the ark. The word used would not refer merely to what is specified in the following verses (his bringing up the ark to Mount Zion), but to his purpose to build a house for God. This purpose extended—since he himself was not permitted to build it because he was a man of war and had been engaged in scenes of blood (1 Kings 5:3; 1 Chronicles 22:8)—to his care and toil in collecting materials for the temple to be built by his son and successor. Therefore, it is not his general afflictions that are meant here, but his anxiety, and his efforts to secure a lasting place for the worship of God.