Took all the hallowed things: that necessity of saving his kingdom and people by this means, which otherwise might seem to excuse the fact, was brought upon himself by his apostacy from God. See Poole on "1 Kings 15:18".
Related Commentaries of 2 Kings 12:18
2 Kings 12:18
18 And Jehoash king of Judah took all the hallowed things that Jehoshaphat, and Jehoram, and Ahaziah, his fathers, kings of Judah, had dedicated, and his own hallowed things, and all the gold that was found in the treasures of the house of the LORD, and in the king's house, and sent it to Hazael king of Syria: and he went away from Jerusalem.