Now the rest of the acts of Joatham, and all his wars, and his works, are written in the book of the kings of Israel and Juda.

And the rest of the matters of Jotham, and all his battles, and his ways, lo, they are written on the book of the kings of Israel and Judah.

Now the rest of the acts of Jotham, and all his wars and his ways, are recorded in the book of the kings of Israel and Judah.

Now the rest of the words of Jotham, and all his battles and works, have been written in the book of the kings of Israel and Judah.

The rest of the acts of Jotham, and all his wars, and his ways - It was in his days, according to 2-Kings 15:37, that Rezin king of Syria, and Pekah king of Israel, began to cut Judah short. See the notes on 2-Kings 15:36, 2-Kings 15:37.
Written in the book of the kings, etc. - There is not so much found in the books of Kings which we have now, as in this place of the Chronicles. In both places we have abridged accounts only: the larger histories have long been lost. The reign of Jotham was properly the last politically prosperous reign among the Jews. Hezekiah and Josiah did much to preserve the Divine worship; but Judah continued to be cut short, till at last it was wholly ruined.

Now the rest of the acts of Jotham, and all his wars,.... Not only with the Ammonites, but with the Syrians, and ten tribes, see 2-Kings 15:37.
and his ways, lo, they are written in the books of the kings of Israel and Judah; not in the canonical books of Kings, but in the Chronicles of the kings of both nations, see 2-Kings 15:36.