1 Kings 12:20-22

Amplified Bible

²⁰ It came about when all Israel heard that Jeroboam had returned, that they sent word and called him to the assembly and made him king over all Israel. None followed the house of David except the tribe of Judah [including Benjamin].

²¹ Now when Rehoboam arrived in Jerusalem, he assembled all the [fighting men from the] house of Judah, with the tribe of Benjamin, 180,000 chosen warriors, to fight against the house of Israel to bring the kingdom back to Rehoboam the son of Solomon. ²² But the word of God came to Shemaiah the man of God, saying,