Psalm 110 - David's Son and David's Lord - Part 3

In this third installment on Psalm 110, we examine the royal army (v. 3) that accompanies David's Adonai—identified as the church itself: willing, holy, born again, and innumerable. We then turn to the priestly session (v. 4), unpacking the solemn oath God swears to His Son, the eternal covenant of redemption (pactum salutis), and the doctrine of divine immutability. Finally, we trace the mysterious priest-king Melchizedek from Genesis 14 to Christ, showing how His eternal priesthood surpasses the Levitical order—securing believers in the unshakable, unchanging promises of God.