When Rehoboam arrived at Jerusalem, he mobilized the armies of Judah and Benjamin -- 180,000 select troops -- to fight against the army of Israel and to restore the kingdom to himself.
But the LORD said to Shemaiah, the man of God,
"Say to Rehoboam son of Solomon, king of Judah, and to all the Israelites in Judah and Benjamin:
'This is what the LORD says: Do not fight against your relatives. Go back home, for what has happened is my doing!'" So they obeyed the message of the LORD and did not fight against Jeroboam.
Rehoboam remained in Jerusalem and fortified various cities for the defense of Judah.
He built up Bethlehem, Etam, Tekoa,
Beth-zur, Soco, Adullam,
Gath, Mareshah, Ziph,
Adoraim, Lachish, Azekah,