He was twenty-five years old when he began to reign, and he reigned twenty-nine years in Jerusalem. His mother's name was Jehoaddin of Jerusalem.
He did what was right in the sight of the Lord, yet not like his ancestor David; in all things he did as his father Joash had done.
But the high places were not removed; the people still sacrificed and made offerings on the high places.
As soon as the royal power was firmly in his hand he killed his servants who had murdered his father the king.
But he did not put to death the children of the murderers; according to what is written in the book of the law of Moses, where the Lord commanded, "The parents shall not be put to death for the children, or the children be put to death for the parents; but all shall be put to death for their own sins."
He killed ten thousand Edomites in the Valley of Salt and took Sela by storm; he called it Jokthe-el, which is its name to this day.
Then Amaziah sent messengers to King Jehoash son of Jehoahaz, son of Jehu, of Israel, saying, "Come, let us look one another in the face."
King Jehoash of Israel sent word to King Amaziah of Judah, "A thornbush on Lebanon sent to a cedar on Lebanon, saying, "Give your daughter to my son for a wife'; but a wild animal of Lebanon passed by and trampled down the thornbush.
You have indeed defeated Edom, and your heart has lifted you up. Be content with your glory, and stay at home; for why should you provoke trouble so that you fall, you and Judah with you?"
But Amaziah would not listen. So King Jehoash of Israel went up; he and King Amaziah of Judah faced one another in battle at Beth-shemesh, which belongs to Judah.
Judah was defeated by Israel; everyone fled home.