Albert Barnes Commentary 1 Kings 21:7

"And Jezebel his wife said unto him, Dost thou now govern the kingdom of Israel? arise, and eat bread, and let thy heart be merry: I will give thee the vineyard of Naboth the Jezreelite." — 1 Kings 21:7 (ASV)

The meaning is, “Are you king, and yet allow yourself to be thwarted in this way by a mere subject? I, the queen, the weak woman, will give you the vineyard, if you, the king, the strong man, will do nothing.”