12 He pulled down the altars the kings of Judah had erected on the roof near the upper room of Ahaz, and the altars Manasseh had built in the two courts of the temple of the Lord. He removed them from there, smashed them to pieces and threw the rubble into the Kidron Valley.
12 And the altars on the roof of the upper chamber of Ahaz, which the kings of Judah had made, and the altars that Manasseh had made in the two courts of the house of the Lord, he pulled down and broke in pieces
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.
12 The altars that were on the roof, the upper chamber of Ahaz, which the kings of Judah had made, and the altars which Manasseh had made in the two courts of the house of the Lord, the king broke down and pulverized there, and threw their dust into the Brook Kidron.
12 Josiah tore down the altars that the kings of Judah had built on the palace roof above the upper room of Ahaz. The king destroyed the altars that Manasseh had built in the two courtyards of the Lord 's Temple. He smashed them to bits and scattered the pieces in the Kidron Valley.
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.