John Gill Commentary 1 Kings 16

Then the word of the Lord came to Jehu the son of Hanani ,
&c.] The seer that reproved Asa, (2 Chronicles 16:7) , so that this man was the son of a prophet then living, and was a young man; for we hear of him several years after reproving Jehoshaphat, (2 Chronicles 19:2) , and as a writer of history, (2 Chronicles 20:34) , the prophecy that came to him from the Lord was

against Baasha ;
king of Israel:

saying ;
as follows.

Forasmuch as I exalted you out of the dust
From a very low estate, and mean family:

and made you prince over my people Israel ;
as they were of right, and ought to have been; and though Baasha got the kingdom by treachery and murder, yet the translation of the kingdom to him was according to the appointment of God, and by his overruling providence; and even his act of killing Nadab was a fulfilment of a prophecy of his; and had he done it in obedience to the will of God, and in vengeance for his sin, would not have been blameworthy, since then he would have been an executioner of the justice of God:

and you have walked in the way of Jeroboam, and have made my people
Israel to sin, to provoke me to anger with their sins ;
committing and encouraging the same idolatrous practices, so very provoking to God.

Behold, I will take away the posterity of Baasha, and the
posterity of his house
By death, there shall be none of his family remaining in any branch of it:

and I will make thy house like the house of Jeroboam the son of Nebat ;
execute the same judgment on it, and in the same manner, their sins being alike.

Him that dieth of Baasha in the city shall the dogs eat, and
him that dieth of his in the fields shall the fowls of the air eat .
] They should not have burial, which is just the same that was threatened to and executed on Jeroboam's family, (1 Kings 14:11) .

Now the rest of the acts of Baasha, and what he did, and his
might, are they not written in the book of the chronicles of the kings
of Israel ?
] As those of Jeroboam and Nadab were, (1 Kings 14:19) (15:31) .