And out of Simeon For the generality of this tribe, though they had their inheritance out of the portion of Judah, revolted to Jeroboam with the other tribes, as appears from many passages of Scripture. This they might conveniently do, because, as their portion bordered, on one side, on the tribe of Judah, so, on the other, it touched on that of Dan, and therefore could easily join with the one or the other. For they fell to him out of Israel in abundance Namely, from the king of Israel.
Related Commentaries of 2 Chronicles 15:9
2 Chronicles 15:9
9 And he gathered all Judah and Benjamin, and the strangers with them out of Ephraim and Manasseh, and out of Simeon: for they fell to him out of Israel in abundance, when they saw that the LORD his God was with him.