Where did Elijah say the dogs would devour Jezebel?

Answer: By the wall of Jezreel

The Lord said through Elijah: 'The dogs will devour Jezebel by the wall of Jezreel.'

“And the LORD also speaks concerning Jezebel: ‘The dogs will devour Jezebel by the wall of Jezreel.’”— 1 Kings 21:23 (BSB)