1 Kings 16:9–13

9 Zimri, one of his officials, who had command of half his chariots, plotted against him. Elah was in Tirzah at the time, getting drunk in the home of Arza, the man in charge of the palace at Tirzah. 10 Zimri came in, struck him down and killed him in the twenty-seventh year of Asa king of Judah. Then he succeeded him as king.

11 As soon as he began to reign and was seated on the throne, he killed off Baasha’s whole family. He did not spare a single male, whether relative or friend. 12 So Zimri destroyed the whole family of Baasha, in accordance with the word of the Lord spoken against Baasha through the prophet Jehu— 13 because of all the sins Baasha and his son Elah had committed and had caused Israel to commit, so that they provoked the Lord, the God of Israel, to anger by their worthless idols.