I will indeed appoint him as My firstborn, the highest of the kings of the earth.
PSALM 89 The prophet who wrote this psalm, whoever he was, in approaching the throne of grace to make supplication to God in behalf of the afflicted Church, lays down, as an encouragement both to himself and the rest of the faithful to cherish good hope, the covenant which God had made with David.
Commenting on Psalm 89:1-52
Also I will make him my firstborn. Among the kings the seed of David were to be most favoured and indulged with most love and paternal regard from God: but in Jesus we see this in the highest degree verified, for he has preeminence in all things, inasmuch as by inheritance he has a more glorious name than any other, and is higher than the kings of the earth.
The covenant God made with David and his seed was mentioned before (Psa 89:3, Psa 89:4); but in these verses it is enlarged upon, and pleaded with God, for favour to the royal family, now almost sunk and ruined; yet certainly it looks at Christ, and has its accomplishment in him much more than in David; nay, some passages here are scarcely applicable at all...
Commenting on Psalm 89:19-37