2 Kings 23:19
And all the houses also of the high places that were in the cities of Samaria, which the kings of Israel had made to provoke the Lord to anger, Josiah took away, and did to them according to all the acts that he had done in Beth–el.
Cross-reference
2 Kings 17:9 describes the high places built by Israel in Samaria — the same ones Josiah now removes in his reforms.
2 Kings 17:16-18 lists the idolatries that provoked God to exile Israel, which Josiah's reforms address.
2 Kings 17:32 describes the origin of these high places: Samaritans appointed priests for them, which Josiah later demolished.
1 Kings 12:31 records Jeroboam's establishment of high places and priests — the very institutions Josiah destroys.
1 Kings 13:32 contains the prophecy against the altars of Bethel — Josiah's destruction fulfills this word.
1 Kings 16:33 specifies Ahab's Asherah pole and provoking God, exemplifying the provocations Josiah overturns.
2 Chronicles 34:6-7 gives the parallel account of Josiah tearing down altars in the northern tribes — same event recorded differently.
2 Chronicles 34:7 offers a parallel account of Josiah tearing down altars and idols throughout Israel.
Psalm 78:58 directly states that Israel provoked God with high places and idols, echoing the language here.
Micah 6:16 condemns Israel for following Omri and Ahab's statutes, the very sins Josiah removes.