John Gill Commentary 1 Kings 21:28

"And the word of Jehovah came to Elijah the Tishbite, saying," — 1 Kings 21:28 (ASV)

And the word of the Lord came to Elijah the Tishbite
After he was gone from Ahab, and Ahab had been some time in this humble posture; the Targum calls it the word of prophecy, and so it was, as the next verse shows: saying: as follows.