2 Chronicles 30:14

And they arose and took away the altars that were in Jerusalem, and all the altars for incense took they away, and cast them into the brook Kidron. They arose and took away the altars that were in Jerusalem. As a necessary preparation for the right observance of the approaching solemnity, the removal of the altars was resolved upon, which Ahaz had erected in the city (2 Chronicles 28:24); for, as being the people of God, the Hebrews were bound to extirpate all traces of idolatry; and it was a happy sign and pledge of the influence of the Spirit pervading the minds of the people when they voluntarily undertook this important preliminary work.