In the twenty and seventh year of Asa king of Judah did Zimri reign seven days in Tirzah. And the people were encamped against Gibbethon, which belonged to the Philistines.
Solomon observes (Pro 28:2) that for the transgression of a land many were the princes thereof (so it was here in Israel), but by a man of understanding the state thereof shall be prolonged - so it was with Judah at the same time under Asa. When men forsake God they are out of the way of rest and establishment.
Commenting on 1 Kings 16:15-28
For his sins which he sinned in doing evil in the sight of the Lord,.... In the former part of his life, as well as now: in walking in the way of Jeroboam, and in his sin which he did to make Israel sin; worshipping the golden calves, which he might do while a captain of the chariots, and also since he usurped the crown...
did Zimri reign seven days--The news of his conspiracy soon spread, and the army having proclaimed their general, Omri, king, that officer immediately raised the siege at Gibbethon and marched directly against the capital in which the usurper had established himself.