John Gill Commentary 2 Kings 9:26

"Surely I have seen yesterday the blood of Naboth, and the blood of his sons, saith Jehovah; and I will requite thee in this plat, saith Jehovah. Now therefore take and cast him into the plat [of ground], according to the word of Jehovah." — 2 Kings 9:26 (ASV)

Surely I have seen yesterday the blood of Naboth
These are the words of the Lord to Elijah the day after Naboth was put to death:

and the blood of his sons, said the Lord ;
who were put to death with him, that there might be no heirs to the estate:

and I will requite thee in this place :
take vengeance here, as he now did on his son:

now therefore take [and] cast him into the plat [of ground], according
to the word of the Lord ;
whereby it would be fulfilled, see (1 Kings 21:19) , more is here recited than there, which Jehu well remembered.