20When all Israel heard that Jeroboam had returned, they summoned him to the assembly and made him king over all Israel. Only the tribe of Judah followed the house of David.
21And when Rehoboam arrived in Jerusalem, he mobilized the whole house of Judah and the tribe of Benjamin —180, 000 chosen warriors — to fight against the house of Israel and restore the kingdom to Rehoboam son of Solomon.
— 1 Kings 12:20-21