II Chronicles 21:1-4- Now Jehoshaphat slept with his fathers, and was buried with his fathers in the city of David. And Jehoram his son reigned in his stead. And he had brethren the sons of Jehoshaphat, Azariah, and Jehiel, and Zechariah, and Azariah, and Michael, and Shephatiah: all these were the sons of Jehoshaphat king of Israel. And their father gave them great gifts of silver, and of gold, and of precious things, with fenced cities in Judah: but the kingdom gave he to Jehoram; because he was the firstborn. Now when Jehoram was risen up to the kingdom of his father, he strengthened himself, and slew all his brethren with the sword, and divers also of the princes of Israel.
This wicked man killed all of his brothers when he had made sure that the kingdom would follow him. He didn't care what his father would think of this, nor did he care what God would think about this.
Jehoshaphat had one problem that was the main influence in his son becoming so wicked. He wouldn't sever ties with the wicked King Ahab.
II Chronicles 21:5-7- Jehoram was thirty and two years old when he began to reign, and he reigned eight years in Jerusalem. And he walked in the way of the kings of Israel, like as did the house of Ahab: for he had the daughter of Ahab to wife: and he wrought that which was evil in the eyes of the LORD. Howbeit the LORD would not destroy the house of David, because of the covenant that he had made with David, and as he promised to give a light to him and to his sons for ever.
Because of Jehoshaphat's friendship with Ahab, his son married one of Ahab's daughters. And this woman was just as wicked as her father was!
God wasn't going to let this evil king get away with his sins.
II Chronicles 21:8-10- In his days the Edomites revolted from under the dominion of Judah, and made themselves a king. Then Jehoram went forth with his princes, and all his chariots with him: and he rose up by night, and smote the Edomites which compassed him in, and the captains of the chariots. So the Edomites revolted from under the hand of Judah unto this day. The same time also did Libnah revolt from under his hand; because he had forsaken the LORD God of his fathers.
The Lord allowed some nations that were once allies of Judah to rebel. They became the enemies of Jeroham and started wars with Judah.
Do you think Jeroham turned to the Lord God Almighty and asked for help like his father Jehoshaphat would have done? Nope! He followed in the ways of his wife's wicked father.
II Chronicles 21:11-19- Moreover he made high places in the mountains of Judah, and caused the inhabitants of Jerusalem to commit fornication, and compelled Judah thereto. And there came a writing to him from Elijah the prophet, saying, Thus saith the LORD God of David thy father, Because thou hast not walked in the ways of Jehoshaphat thy father, nor in the ways of Asa king of Judah, But hast walked in the way of the kings of Israel, and hast made Judah and the inhabitants of Jerusalem to go a whoring, like to the whoredoms of the house of Ahab, and also hast slain thy brethren of thy father's house, which were better than thyself: Behold, with a great plague will the LORD smite thy people, and thy children, and thy wives, and all thy goods: And thou shalt have great sickness by disease of thy bowels, until thy bowels fall out by reason of the sickness day by day. Moreover the LORD stirred up against Jehoram the spirit of the Philistines, and of the Arabians, that were near the Ethiopians: And they came up into Judah, and brake into it, and carried away all the substance that was found in the king's house, and his sons also, and his wives; so that there was never a son left him, save Jehoahaz, the youngest of his sons. And after all this the LORD smote him in his bowels with an incurable disease. And it came to pass, that in process of time, after the end of two years, his bowels fell out by reason of his sickness: so he died of sore diseases. And his people made no burning for him, like the burning of his fathers.
Not only did God send armies to battle with Jeroham, but God also struck him with a terrible disease. The sad part was that his people didn't even care that he died. They just buried him.
II Chronicles 21:20- Thirty and two years old was he when he began to reign, and he reigned in Jerusalem eight years, and departed without being desired. Howbeit they buried him in the city of David, but not in the sepulchres of the kings.
That's such a sad way for a life to end! He died and no one cared.
But, the treachery of the house of Ahab wasn't over.
II Chronicles 22:1-4 And the inhabitants of Jerusalem made Ahaziah his youngest son king in his stead: for the band of men that came with the Arabians to the camp had slain all the eldest. So Ahaziah the son of Jehoram king of Judah reigned. Forty and two years old was Ahaziah when he began to reign, and he reigned one year in Jerusalem. His mother's name also was Athaliah the daughter of Omri. He also walked in the ways of the house of Ahab: for his mother was his counsellor to do wickedly. Wherefore he did evil in the sight of the LORD like the house of Ahab: for they were his counsellors after the death of his father to his destruction.
Not only did Jeroham marry the daughter of Ahab, but he also married the sister of Ahab. Athaliah was the daughter of Omri, the father of Ahab. And she was just as evil as Queen Jezebel!