2 Chronicles 25:3

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

The verse records the opening act of Amaziah's reign, when once the kingdom was firmly established to him he put to death the servants who had assassinated his father. Amaziah was a disloyal king of Judah who followed Joash, who did right only as long as Jehoiada the priest lived. He stands in succession after Jehoshaphat, Jehoram, Ahaziah, Athaliah, and Joash and before Azariah or Uzziah, Jotham, Ahaz, Hezekiah, Manasseh, Amon, and Josiah, with Judah's kingdom afterward dwindling through Jehoahaz, Jehoiakim, Jehoiachin, and Zedekiah until its close in B.C. 586.

In direct contrast to Jehoshaphat, Amaziah served God and accepted a prophet's testimony when it pleased him, but when the prophet reproved the course he was pursuing he resented it at once, rejected the counsel, and challenged the prophet's right to counsel the king, saying in effect art thou made of the king's counsel, forbear, why shouldst thou be smitten. Because he did this and did not hearken to the prophet's counsel, God determined to destroy him. The chapter teaches that money or effort already spent is no reason to continue a wrong course, since God can provide far more than whatever is sacrificed in order to obey him. His history is the history of many others who follow their own counsel instead of accepting the counsel of the Lord's prophet.