He brought out the Asherah from the house of Yahweh outside of Jerusalem, to the brook Kidron, and burned it at the brook Kidron and beat it to dust and cast its dust on the graves of the common people. Bible

“on the graves of the common people.” This was not to defile the graves, for graves were already “unclean.” This was to show contempt for, and defile, the Asherah.

Commentary for: 2 Kings 23:6