“Then King Amaziah sent messengers to King Joash son of King Jehoahaz, son of King Jehu of Israel, saying. ‘Come! Let us look one another in the face.’ King Joash of Israel sent word to King Amaziah of Judah. ‘A thorn bush in Lebanon went to a cedar in Lebanon, saying. ‘Give your daughter to my son for a wife.’ But a wild animal of Lebanon passed by and trampled down the thorn bush. You have indeed defeated Edom. Your heart has lifted you up. Be content with your glory. Stay at home. Why should you provoke trouble so that you fall, you and Judah with you?’”
King Amaziah of Judah wanted to see who was better between him and King Joash of Israel. He wanted to have them look in the face at each other. However, King Joash said that would be like comparing a thorn bush to a Lebanon cedar tree. Wild animals would trample the thorn bust. He told King Amaziah to stay home and bask in the glory of his defeat of the Edomites. Do not provoke trouble for you and Judah. They were taunting each other.