2 Chronicles 11:11-17

Rehoboam strengthened their defenses and stationed commanders in them, and he stored supplies of food, olive oil, and wine. He also put shields and spears in these towns as a further safety measure. So only Judah and Benjamin remained under his control. But all the priests and Levites living among the northern tribes of Israel sided with Rehoboam. The Levites even abandoned their pasturelands and property and moved to Judah and Jerusalem, because Jeroboam and his sons would not allow them to serve the LORD as priests. Jeroboam appointed his own priests to serve at the pagan shrines, where they worshiped the goat and calf idols he had made. From all the tribes of Israel, those who sincerely wanted to worship the LORD, the God of Israel, followed the Levites to Jerusalem, where they could offer sacrifices to the LORD, the God of their ancestors. This strengthened the kingdom of Judah, and for three years they supported Rehoboam son of Solomon, for during those years they faithfully followed in the footsteps of David and Solomon.