These words are not extant in the place where this prophecy is first mentioned, 1 Kings 21:23, but are here added, either by Jehu, by way of explication and amplification; or rather, because Elijah spoke them, though they be not there recorded, as being for the substance of them contained in the former words; it being usual to insert some passages in following writings which had been omitted in the former.
Related Commentaries of 2 Kings 9:37
2 Kings 9:37
37 And the carcase of Jezebel shall be as dung upon the face of the field in the portion of Jezreel; so that they shall not say, This is Jezebel.