2 Kings 22:8

8-11. Hilkiah said ... I have found the book of the law in the house of the Lord, &c.--that is, the law of Moses, the Pentateuch. It was the temple copy which, had been laid (De 31:25, 26) beside the ark in the most holy place. During the ungodly reigns of Manasseh and Amon--or perhaps under Ahaz, when the temple itself had been profaned by idols, and the ark also (2Ch 35:3) removed from its site; it was somehow lost, and was now found again during the repair of the temple [Keil]. Delivered by Hilkiah the discoverer to Shaphan the scribe [2Ki 22:8], it was by the latter shown and read to the king. It is thought, with great probability, that the passage read to the king, and by which the royal mind was so greatly excited, was a portion of Deuteronomy, the twenty-eighth, twenty-ninth, and thirtieth chapters, in which is recorded a renewal of the national covenant, and an enumeration of the terrible threats and curses denounced against all who violated the law, whether prince or people. The impressions of grief and terror which the reading produced on the mind of Josiah have seemed to many unaccountable. But, as it is certain from the extensive and familiar knowledge displayed by the prophets, that there were numbers of other copies in popular circulation, the king must have known its sacred contents in some degree. But he might have been a stranger to the passage read him, or the reading of it might, in the peculiar circumstances, have found a way to his heart in a manner that he never felt before. His strong faith in the divine word, and his painful consciousness that the woeful and long-continued apostasies of the nation had exposed them to the infliction of the judgments denounced, must have come with overwhelming force on the heart of so pious a prince.

Robert Jamieson, A. R. Fausset & David Brown, 1871 · public domain

Verse 8 I have found the book of the law - Was this the autograph of Moses? It is very probable that it was, for in the parallel place; 2Chr 34:14, it is said to be the book of the law of the Lord by Moses. It is supposed to be that part of Deuteronomy (28, 29, 30, and 31), which contains the renewing of the covenant in the plains of Moab, and which contains the most terrible invectives against the corrupters of God's word and worship. The rabbins say that Ahaz, Manasseh, and Amon endeavored to destroy all the copies of the law, and this only was saved by having been buried under a paving-stone. It is scarcely reasonable to suppose that this was the only copy of the law that was found in Judea; for even if we grant that Ahaz, Manasseh, and Amon had endeavored to destroy all the books of the law, yet they could not have succeeded so as to destroy the whole. Besides, Manasseh endeavored after his conversion to restore every part of the Divine worship, and in this he could have done nothing without the Pentateuch; and the succeeding reign of Amon was too short to give him opportunity to undo every thing that his penitent father had reformed. Add to all these considerations, that in the time of Jehoshaphat teaching from the law was universal in the land, for he set on foot an itinerant ministry, in order to instruct the people fully: for "he sent to his princes to teach in the cities of Judah; and with them he sent Levites and priests; and they went about through all the cities of Judah, and taught the people, having the book of the Lord with them;" see 2Chr 17:7-9. And if there be any thing wanting to show the improbability of the thing, it must be this, that the transactions mentioned here took place in the eighteenth year of the reign of Josiah, who had, from the time he came to the throne, employed himself in the restoration of the pure worship of God; and it is not likely that during these eighteen years he was without a copy of the Pentateuch. The simple fact seems to be this, that this was the original of the covenant renewed by Moses with the people in the plains of Moab, and which he ordered to be laid up beside the ark; (Deu 31:26); and now being unexpectedly found, its antiquity, the occasion of its being made, the present circumstances of the people, the imperfect state in which the reformation was as yet, after all that had been done, would all concur to produce the effect here mentioned on the mind of the pious Josiah.

Adam Clarke, 1831 · public domain