Full Ps 16 in context. NT anchors: Acts 2:25–28 (Peter's Pentecost sermon citing vv. 8–11); Acts 13:35 (Paul citing v. 10 at Antioch). The verse-10 argument: David died and was buried, so Ps 16:10 cannot ultimately be about David; the resurrection of Christ fulfills the psalm's own claim, "neither wilt thou suffer thy holy one to see corruption" (Ps 16:10). Contested: the plain sense is David's own confidence of preservation, not resurrection after death.
Peter and Paul's argument leans on the LXX's diaphthora ("corruption/decay") for MT shachath ("pit"), and on the historical fact of David's death as the disqualifier; both columns stand. Featured commentary: Spurgeon, Treasury of David on Ps 16.