The Path to Full and Lasting Pleasure
The main point of Psalm 16, at least as I understand it, is this:
God will bring you — body and soul — through life and death to full and everlasting pleasure, if he is your safest refuge, and your supreme treasure, and your sovereign Lord, and your trusted counselor.
A few of you may hear that summary and ask, “Is he going to take into account what the apostle Peter makes of this Psalm in Acts 2? I wonder if he’s going to deal with the fact that, in Peter’s mind, Psalm 16:9–11 is a prophecy of the resurrection of Jesus. And if so, I wonder why he didn’t include that in the main point?”
From Desiring God.