In the sermon titled 'The Resurrection', David Green discusses Peter's interpretation of Psalm 16, emphasizing that it could not refer to King David, as he is deceased and buried. Instead, Green explains that Peter identifies the text as a prophecy about Jesus Christ's resurrection. The sermon underscores the idea that Peter and others were witnesses to the fulfillment of this prophecy, pointing to the resurrected Christ as the true subject of Psalm 16.
You see, Peter took that text of Psalm 16 and he said, this can't be about David. David's dead. His body's in the grave. We're all witnesses to this. This text, Psalm 16, is about someone else, the resurrected Christ.