14 Now this is what the Lord says: "I will uproot from their land all the evil nations reaching out for the possession I gave my people Israel. And I will uproot Judah from among them. 15 But afterward I will return and have compassion on all of them. I will bring them home to their own lands again, each nation to its own possession. 16 And if these nations truly learn the ways of my people, and if they learn to swear by my name, saying, 'As surely as the Lord lives' (just as they taught my people to swear by the name of Baal), then they will be given a place among my people. 17 But any nation who refuses to obey me will be uprooted and destroyed. I, the Lord, have spoken!"
Matthew Henry's Commentary on Jeremiah 12:14-17
Commentary on Jeremiah 12:14-17
(Read Jeremiah 12:14-17)
The Lord would plead the cause of his people against their evil neighbours. Yet he would afterwards show mercy to those nations, when they should learn true religion. This seems to look forward to the times when the fulness of the Gentiles shall come in. Those who would have their lot with God's people, and a last end like theirs, must learn their ways, and walk in them.