I will make him my first-born - I will deal with him as a father by his first-born son, to whom a double portion of possessions and honors belong. First-born. is not always to be understood literally in Scripture. It often signifies simply a well-beloved, or best-beloved son; one preferred to all the rest, and distinguished by some eminent prerogative. Thus God calls Israel his son, his first-born, Exodus 4:22. See also Sirach 36:12. And even Ephraim is called God's first-born, Jeremiah 31:9. In the same sense it is sometimes applied even to Jesus Christ himself, to signify his supereminent dignity; not the eternal Sonship of his Divine nature, as inveterate prejudice and superficial thinking have supposed.
Also I will make him my first-born - He shall be regarded and treated by me as the first-born son is in a family; that is, with distinguished favor and honor. Compare Genesis 27:19; Genesis 29:26; Exodus 4:22; Exodus 13:12; Jeremiah 31:9. See also the notes at Colossians 1:15, notes at Colossians 1:18.
Higher than the kings of the earth - Than other kings; the most exalted among kings and rulers. This was entirely fulfilled in David, who occupied a pre-eminence among princes and rulers which no other king did: a prominence alike in his own personal character and his reign; in his relation to God; and in the fact that he was the ancestor of the Messiah, the “King of kings, and Lord of lords” Revelation 19:16; “the prince of the kings of the earth,” Revelation 1:5.
“I have sworn unto David My servant ... with whom My hand shall be established: Mine arm also shall strengthen him.... My faithfulness and My mercy shall be with him: and in My name shall his horn be exalted. I will set his hand also in the sea, and his right hand in the rivers. He shall cry unto Me, Thou art my Father, my God, and the Rock of my salvation. Also I will make him My first-born, higher than the kings of the earth. My mercy will I keep for him forevermore, and My covenant shall stand fast with him.” Psalm 89:3-28. PP 755.1
“His seed also will I make to endure forever,
And his throne as the days of heaven.” Psalm 89:29. PP 755.2
“He shall judge the poor of the people,
He shall save the children of the needy,
And shall break in pieces the oppressor.
They shall fear thee while the sun endureth,
And so long as the moon, throughout all generations....
In his days shall the righteous flourish;
And abundance of peace, till the moon be no more.
He shall have dominion also from sea to sea,
And from the river unto the ends of the earth.”
“His name shall endure forever:
His name shall be continued as long as the sun:
And men shall be blessed in him:
All nations shall call him blessed.” PP 755.3