And I the LORD will be their God, and my servant David a prince among them; I the LORD have spoken it.

Wesley's Notes

34:24 My servant - Christ was in this great work his fathers servant, Isa 42:1.

Jamieson-Fausset-Brown Bible Commentary

24. my servant-implying fitness for ruling in the name of God, not pursuing a self-chosen course, as other kings, but acting as the faithful administrator of the will of God; Messiah realized fully this character (Ps 40:7, 8; Isa 42:1; 49:3, 6; 53:11; Php 2:7), which David typically and partially represented (Ac 13:36); so He is the fittest person to wield the world scepter, abused by all the world kings (Da 2:34, 35, 44, 45).

Matthew Henry's Concise Commentary

34:17-31 The whole nation seemed to be the Lord's flock, yet they were very different characters; but he knew how to distinguish between them. By good pastures and deep waters, are meant the pure word of God and the dispensing of justice. The latter verses, 23-31, prophesy of Christ, and of the most glorious times of his church on earth. Under Him, as the good Shepherd, the church would be a blessing to all around. Christ, though excellent in himself, was as a tender plant out of a dry ground. Being the Tree of life, bearing all the fruits of salvation, he yields spiritual food to the souls of his people. Our constant desire and prayer should be, that there may be showers of blessings in every place where the truth of Christ is preached; and that all who profess the gospel may be filled with fruits of righteousness.