I. God will have a people among them. If their brethren in Babylon will not come to them, those of other nations shall, and shall replenish Jerusalem and the cities of Judah: Many nations shall be joined to the Lord in that day that are now at a distance from him and strangers to him. The Jewish nation, after the captivity, multiplied very much, by the accession of proselytes to it, that were naturalized, and were entitled to all the privileges of native Israelites, and perhaps they were equal in number; and therefore Paul mentions it as an honour to him which many Jews had not, that he was of the tribe of Benjamin, a Hebrew of the Hebrews, Phil. iii. 5. And this was an earnest of the bringing in of the Gentiles into the christian church and in that this and other similar promises were to have their full accomplishment. It was therefore strange that that should be so great an offence to the Jews, as we find it was in the apostles' times, which was promised them as a blessing in the prophets' times—that many nations should be joined to the Lord. And, as there had been one law, so should there be one gospel for the stranger and for those born in the land; whatever nation they come from, when they join themselves to the Lord, they shall be my people, as dear to God as ever Israel had been. Note, God will own those for his people who with purpose of heart join themselves to him; and, when many do so, we ought to look upon them, not with a jealous eye, but with a joyful one. Angels rejoice, and therefore so should the daughter of Zion, when many nations are joined to the Lord.