Kidron: Destruction of Idols At, by Asa, Josiah, and the Levites
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1 Kings 15:13
He also removed his grandmother Maacah from her position as queen mother because she had made a detestable Asherah pole. Asa chopped down the pole and burned it in the Kidron Valley.
2 Kings 23:6, 12
He brought the Asherah pole from the house of the LORD to the Kidron Valley outside Jerusalem, and there he burned it, ground it to powder, and threw its dust on the graves of the common people. / He pulled down the altars that the kings of Judah had set up on the roof near the upper chamber of Ahaz, and the altars that Manasseh had set up in the two courtyards of the house of the LORD. The king pulverized them there and threw their dust into the Kidron Valley.
2 Chronicles 29:16
So the priests went inside the house of the LORD to cleanse it, and they brought out to the courtyard all the unclean things that they found in the temple of the LORD. Then the Levites took these things and carried them out to the Kidron Valley.