(19-22) And the word of the Lord came unto Jeremiah, saying . . .--The new introduction here and in Jeremiah 33:23 indicates a fresh message borne in on the prophet's mind after an interval of time. In substance it repeats the promise of Jeremiah 33:17-18, but it reproduces them with yet greater solemnity. The covenant of Jehovah with David and with the Levites the priests is placed on the same level of permanence as the ordered succession of day and night. If the old order ultimately gave way to the new, it was only because the new was the transfigured and glorified reproduction of the old. Whatever may have been the thoughts of the prophet, we are authorised in looking for the seed of David and of the Levites in those who, by virtue of their union with Christ, are made both kings and priests unto the Father (Revelation 1:6). Just as the promise to the seed of Abraham is fulfilled in those who are spiritually the children of the faith of Abraham (Romans 9:7-8), so in this sense only can it be true that the seed of David and the Levites shall out number the host of the heaven and the sand of the sea.

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.And the word of the Lord came unto Jeremiah,.... For the further explanation and confirmation of what is before said; and which came at the same time as the other; this being not a new prophecy, but an illustration of the former:

saying; as follows: