NET

9 His servant Zimri, a commander of half of his chariot force, conspired against him. While Elah was in Tirzah drinking heavily at the house of Arza, who supervised the palace in Tirzah,

Darby

9 And his servant Zimri, captain of half [his] chariots, conspired against him; and he was in Tirzah, drinking himself drunk in the house of Arza, who was the steward of his house in Tirzah;

KJV

9 And his servant Zimri, captain of half [his] chariots, conspired against him, as he was in Tirzah, drinking himself drunk in the house of Arza steward^K1920of [his] house in Tirzah.

KJV Bible Notes

steward: Heb. which was over.