Restraining the War Against the Northern Tribes
After the division of the kingdom, King Rehoboam assembled an army of 180,000 troops to force the ten rebellious tribes back under his rule. As recorded in 1 Kings 12:22-24 and 2 Chronicles 11:2-4, the word of the Lord came to Shemaiah, a man of God, instructing Rehoboam and the house of Judah and Benjamin not to go up and fight against their brothers.
Shemaiah delivered the divine word that 'this thing is from Me,' and the assembled army stood down in obedience to the prophecy. The Pulpit Commentary characterized the episode as a timely reminder of the unity of the people, notwithstanding the political division of the kingdom.