2 Chronicles 25:1-3

Amaziah was twenty and five years old when he began to reign, and he reigned twenty and nine years in Jerusalem. And his mother’s name was Jehoaddan of Jerusalem.

And he did that which was right in the sight of the LORD, but not with a perfect heart.

Now it came to pass, when the kingdom was established to him, that he slew his servants that had killed the king his father.