To summarize, the original context that produced the psalm is not clear. The people that David addresses at various times is not clear. It’s not clear when the shifts happen in the psalm. And even some of the exhortations are ambiguous (“Be angry and don’t sin”). However, despite that ambiguity, there is a much that is clear. David pleads with God for relief from his distress. David knows that God has chosen him for himself and will hear his prayer. David exhorts others to offer right sacrifices to God and to trust in the Lord no matter what. And David knows that when God’s face shines on him, he has more joy than any earthly joy, and therefore he can sleep well.
