Matthew Poole and continuators on Isaiah 55:4

4 Behold, I have given him for a witness to the people , a leader and commander to the people.

The David last mentioned, even Christ, the Son and Successor of David, as is plain and certain from the titles and works ascribed to him in this and in the following Verse. But of this see the last note upon the former verse.

To be a Prophet or Teacher, to declare the counsel and will of God concerning the duty and Salvation of Men, to bear witness unto the truth, as Christ himself affirmeth, Ioh. 18. 37. to confirm Gods Promises, Rom. 15. 8. and, amongst others, those which respect the calling and reconciliation of the Gentiles, to be a witness for both parties of that Covenant made between God and Men.

Not only to my People of Israel, but to all People, Gentiles no less than Jews, as is evident from the following verse, and from Isa. 49. 6. and divers other places.

A soveraign Prince to give them Laws, and exact their Obedience, and in case of their Obedience to give them Protection and Rewards.

o I have already appointed, and will in due time actually give.