Then the king directed that all the elders of Judah and Jerusalem should be gathered to him.
The king went up to the house of the Lord, and with him went all the people of Judah, all the inhabitants of Jerusalem, the priests, the prophets, and all the people, both small and great; he read in their hearing all the words of the book of the covenant that had been found in the house of the Lord.
The king stood by the pillar and made a covenant before the Lord, to follow the Lord, keeping his commandments, his decrees, and his statutes, with all his heart and all his soul, to perform the words of this covenant that were written in this book. All the people joined in the covenant.
The king commanded the high priest Hilkiah, the priests of the second order, and the guardians of the threshold, to bring out of the temple of the Lord all the vessels made for Baal, for Asherah, and for all the host of heaven; he burned them outside Jerusalem in the fields of the Kidron, and carried their ashes to Bethel
He deposed the idolatrous priests whom the kings of Judah had ordained to make offerings in the high places at the cities of Judah and around Jerusalem; those also who made offerings to Baal, to the sun, the moon, the constellations, and all the host of the heavens.
He brought out the image of Asherah from the house of the Lord, outside Jerusalem, to the Wadi Kidron, burned it at the Wadi Kidron, beat it to dust and threw the dust of it upon the graves of the common people.
References for 2 Kings 23:6