And he did that which was right in the sight of the LORD, and {a} walked in all the way of David his father, and turned not aside to the right hand or to the left.

(a) His zeal was prophesied of, and his name mentioned by Iddo the prophet, more than 300 years before, 1Ki 13:2 and being but eight years old, he sought the God of his father David, 2Ch 34:3.

Matthew Henry's Concise Commentary

22:1-10 The different event of Josiah's early succession from that of Manasseh, must be ascribed to the distinguishing grace of God; yet probably the persons that trained him up were instruments in producing this difference. His character was most excellent. Had the people joined in the reformation as heartily as he persevered in it, blessed effects would have followed. But they were wicked, and had become fools in idolatry. We do not obtain full knowledge of the state of Judah from the historical records, unless we refer to the writings of the prophets who lived at the time. In repairing the temple, the book of the law was found, and brought to the king. It seems, this book of the law was lost and missing; carelessly mislaid and neglected, as some throw their Bibles into corners, or maliciously concealed by some of the idolaters. God's care of the Bible plainly shows his interest in it. Whether this was the only copy in being or not, the things contained in it were new, both to the king and to the high priest. No summaries, extracts, or collections out of the Bible, can convey and preserve the knowledge of God and his will, like the Bible itself. It was no marvel that the people were so corrupt, when the book of the law was so scarce; they that corrupted them, no doubt, used arts to get that book out of their hands. The abundance of Bibles we possess aggravates our national sins; for what greater contempt of God can we show, than to refuse to read his word when put into our hands, or, reading it, not to believe and obey it? By the holy law is the knowledge of sin, and by the blessed gospel is the knowledge of salvation. When the former is understood in its strictness and excellence, the sinner begins to inquire, What must I do to be saved? And the ministers of the gospel point out to him Jesus Christ, as the end of the law for righteousness to every one that believeth.