17 For this is what the Lord says: David will have a descendant sitting on the throne of Israel forever. 18 And there will always be Levitical priests to offer burnt offerings and grain offerings and sacrifices to me." 19 Then this message came to Jeremiah from the Lord : 20 "This is what the Lord says: If you can break my covenant with the day and the night so that one does not follow the other, 21 only then will my covenant with my servant David be broken. Only then will he no longer have a descendant to reign on his throne. The same is true for my covenant with the Levitical priests who minister before me.
Matthew Henry's Commentary on Jeremiah 33:17-21
Commentary on Jeremiah 33:14-26
(Read Jeremiah 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 Galatians 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.