John Gill 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)

And Jezebel his wife said to him, do you now govern the
kingdom of Israel ?
&c.] Are you not king of Israel? can you not do as you please? have you not power to oblige a subject to obey your commands, and especially in such a trifling matter as parting with a vineyard, and that upon the most reasonable terms? you have too much demeaned yourself as a king; you ought to have exerted your kingly power and authority, and demanded it from him;

The Targum is, ``you now shall prosper in your kingdom over Israel;'' your reign now is prosperous, and like to continue so, having obtained two such victories over your enemies, and therefore should not be dejected with such a trifling thing as this:

arise, and eat bread, and let your heart be merry :
the kingdom being in such a flourishing state; and let not this affair give you any trouble or uneasiness; I will take care of that, leave it with me:

I will give you the vineyard of Naboth the Jezreelite :
without paying any money, or giving another vineyard in exchange for it.