12 The king smashed all the altars to smithereens - the altar on the roof shrine of Ahaz, the various altars the kings of Judah had made, the altars of Manasseh that littered the courtyard of The Temple - he smashed them all, pulverized the fragments, and scattered their dust in the Valley of Kidron.
Matthew Henry's Commentary on 2 Kings 23:12
Commentary on 2 Kings 23:4-14
(Read 2 Kings 23:4-14)
What abundance of wickedness in Judah and Jerusalem! One would not have believed it possible, that in Judah, where God was known, in Israel, where his name was great, in Salem, in Zion, where his dwelling-place was, such abominations should be found. Josiah had reigned eighteen years, and had himself set the people a good example, and kept up religion according to the Divine law; yet, when he came to search for idolatry, the depth and extent were very great. Both common history, and the records of God's word, teach, that all the real godliness or goodness ever found on earth, is derived from the new-creating Spirit of Jesus Christ.