Charles Ellicott Commentary 2 Chronicles 30:25

"And all the assembly of Judah, with the priests and the Levites, and all the assembly that came out of Israel, and the sojourners that came out of the land of Israel, and that dwelt in Judah, rejoiced." — 2 Chronicles 30:25 (ASV)

And all the congregation. —Three classes of persons took part in the festival—

1. the Judeans, including the priests and Levites;
2. their Israelite guests;
3. the “strangers”— gêrîm — i.e., the proselytes, both those who came from the northern kingdom and those who dwelt in Judah.

The word gêrîm is not the same as gârîm (2 Chronicles 15:9), with which Lange’s comment confuses it. (Compare to Leviticus 17:12.)