*Minor differences ignored. Grouped by changes, with first version listed as example.
In the eleventh year - The twelfth according to 2-Kings 8:25. The discrepancy may be best explained from two ways of reckoning the accession of Ahaziah, who is likely to have been regent for his father during at least one year. See 2-Chronicles 21:19.
In the eleventh year of Joram - The note in our margin contains as good an account of this chronological difficulty as can be reasonably required: Then he began to reign as viceroy to his father in his sickness; 2-Chronicles 21:18, 2-Chronicles 21:19. But in Joram's twelfth year he began to reign alone; 2-Kings 8:26.
And in the (k) eleventh year of Joram the son of Ahab began Ahaziah to reign over Judah.
(k) That is, eleven whole years: for in (2-Kings 8:25) when he said he began to reign in the twelfth year of Joram, he takes a partial year for a whole.
And in the eleventh year of Joram the son of Ahab began Ahaziah to reign over Judah. In 2-Kings 8:25, it is said to be in the twelfth year of his reign; it was at the close of the eleventh, and the beginning of the twelfth; or he began to reign with his father in the eleventh as here, and in the twelfth as there, when his father was dead.
*More commentary available at chapter level.