1 Kings 16:9

Now his servant Zimri, commander of half his chariots, conspired against him as he was in Tirzah drinking himself drunk in the house of Arza, steward of his house in Tirzah.

Surrounding context

16:8 In the twenty-sixth year of Asa king of Judah, Elah the son of Baasha became king over Israel, and reigned two years in Tirzah.

16:9 Now his servant Zimri, commander of half his chariots, conspired against him as he was in Tirzah drinking himself drunk in the house of Arza, steward of his house in Tirzah.

16:10 And Zimri went in and struck him and killed him in the twenty-seventh year of Asa king of Judah, and reigned in his place.

Translation and sources