Albert Barnes Commentary Psalms 143:5

"I remember the days of old; I meditate on all thy doings; I muse on the work of thy hands." — Psalms 143:5 (ASV)

I remember the days of old - Former times.

1. as contrasted with my present condition.
2. as times when I called upon you, and you interposed.
3. as encouraging me now to come to you, and spread out my case before you. See (Psalms 77:5–11), note; (Psalms 42:4), note.

I meditate on all thy works ... - On what you have done; on your gracious interpositions in the time of trial; on the manifestations of your power in my behalf, and in behalf of your people. I call all this to mind, remembering that you are an unchangeable God; that you have the same power still; that you can interpose now as you did then; and that, as an unchangeable God, you will do it in the same circumstances. I, therefore, come to you, and pray that you will interpose in my behalf.