And at that time Hanani the seer came to Asa king of Judah, and said unto him, “Because thou hast relied on the king of Syria, and not relied on the LORD thy God, therefore is the host of the king of Syria escaped out of thine hand.  Were not the Ethiopians and the Lubims a huge host, with very many chariots and horsemen? Yet, because thou didst rely on the LORD, He delivered them into thine hand. For the eyes of the LORD run to and fro throughout the whole earth, to shew Himself strong in the behalf of them whose heart is perfect toward Him. Herein thou hast done foolishly: therefore from henceforth thou shalt have wars.”
Then Asa was wroth with the seer, and put him in a prison house; for he was in a rage with him because of this thing. And Asa oppressed some of the people the same time.
2 Chronicles 16:7-10

King Asa was the third king following Solomon.  Solomon’s son Rehoboam was a king who did not do right in the eyes of the LORD.  Abijah was Solomon’s grandson and he was similar to his father.  Then along comes Asa, of whom the Bible says did right in the eyes of the LORD.

Asa was  so committed to seeking the LORD, that he cleaned the land of Judah all its demon worship (idols), and while he was king many people who were of the Northern tribes came to live in Jerusalem while he reigned.  Asa was God’s catalyst for bringing in peace for Judah for thirty years. When he did have a battle he called on the name of the LORD, and the LORD helped, and they got the victory.

In a final battle King Asa gets full of himself, and when Israel the Northern kingdom was attacking the cities of Judah to keep their people from coming back to Jerusalem, Asa hires Syria to attack Israel

That is when the prophet Hanani comes with the above words reminding of an much greater army God had given him the victory over.  Why would a king that had done good, suddenly hire and enemy of them both to attack his brethren?

This did not please the LORD, and He sent the seer, the prophet with those words that made angry; so angry that he had Hanani locked in prison; and he began oppressing some of the people.

We can learn from this that we need to always trust in the LORD.  No matter what comes our way, as Christian people ought always be in the Lord our God.

We can also see what happens when we do not submit to the word of the LORD, and we get angry with the messenger.

So DON’T GET ANGRY WITH THE MESSENGER.  Hear the truth and submit to the LORD.