33:14-26 To crown the blessings God has in store, here is a promise of the Messiah. He imparts righteousness to his church, for he is made of God to us righteousness; and believers are made the righteousness of God in him. Christ is our Lord God, our righteousness, our sanctification, and our redemption. His kingdom is an everlasting kingdom. But in this world prosperity and adversity succeed each other, as light and darkness, day and night. The covenant of priesthood shall be secured. And all true believers are a holy priesthood, a royal priesthood, they offer up spiritual sacrifices, acceptable to God; themselves, in the first place, as living sacrifices. The promises of that covenant shall have full accomplishment in the gospel Israel. In Ga 6:16, all that walk according to the gospel rule, are made to be the Israel of God, on whom shall be peace and mercy. Let us not despise the families which were of old the chosen people of God, though for a time they seem to be cast off.Then will I cast away the seed of Jacob, and David my servant,.... R. Jonah thinks that Jacob is put instead of Aaron, because of the two families of David and Aaron before mentioned; but in this latter part of the chapter no mention is made of priests at all; and by the "seed" is meant one and the same, the spiritual seed of Christ, the antitypical David, and servant of the Lord; and which are no other than the seed of Jacob, over whom the Messiah reigns; or the spiritual Israel of God, whether Jews or Gentiles, and whom the Lord never casts away, so as to perish; but they shall all be saved in the Lord with an everlasting salvation: See Gill on Jeremiah 31:37; and even the seed of Jacob, and of David, who was of Jacob, in the line of Judah, shall not be in such sense rejected:

so that I will not take any of his seed to be rulers over the seed of Abraham, Isaac, and Jacob; that is, any of the seed of David taken literally; from whom the Lord has taken one, or raised up one of his seed, even the Messiah, to be a ruler over all the spiritual seed of Abraham, Isaac, and Jacob; or of all that tread in their steps: but inasmuch as by the seed of Jacob and David may be meant the spiritual seed of Christ, by rulers taken from them may be intended spiritual rulers and governors of the church, or ministers of the Gospel:

for I will cause their captivity to return, and have mercy on them; not only their captivity from Babylon, and so the family of David restored and continued till the Messiah should spring out of it; but the spiritual captivity of the Israel of God, of which the other was a type, and would be brought about by the Messiah; who in his love and pity should redeem them, as he has, from sin, Satan, law, hell, and death.