1 Kings 12:21-24 NIV

21 When Rehoboam arrived in Jerusalem, he mustered the whole house of Judah and the tribe of Benjamin--a hundred and eighty thousand fighting men--to make war1 against the house of Israel and to regain the kingdom for Rehoboam son of Solomon.

References for 1 Kings 12:21

22 But this word of God came to Shemaiah2 the man of God:3

References for 1 Kings 12:22

23 "Say to Rehoboam son of Solomon king of Judah, to the whole house of Judah and Benjamin, and to the rest of the people,
24 'This is what the LORD says: Do not go up to fight against your brothers, the Israelites. Go home, every one of you, for this is my doing.' " So they obeyed the word of the LORD and went home again, as the LORD had ordered.