Note 14 at Ac 2:30: This verse makes it clear that David had an understanding of what he was prophesying concerning the bodily resurrection of the Messiah (1Pe 1:10-11). There is not an exact account in Scripture of a specific time that he received this revelation from God. However, it is very clear from the scriptures Peter was quoting in this passage (Ps 16:8-11 and 110:1), together with his Spirit-inspired commentary (this verse), that the revelation prophesied had come to fulfillment.

Note 15 at Ac 2:30: This oath is probably referring to David's statement in Ps 110:4 where the Lord swore and would not repent that the Messiah will be a priest forever after the order of Melchizedek.

Note 16 at Ac 2:30: As pointed out very clearly here, Jesus was a physical descendant of David, not a spiritual descendant. This also further attests to the fact of an actual physical resurrection of Jesus' body and not just a spiritual resurrection, as some have suggested.