He burned sacrifices in the Valley of Ben Hinnom1 and sacrificed his sons2 in the fire, following the detestable3 ways of the nations the LORD had driven out before the Israelites.
References for 2 Chronicles 28:3
He offered sacrifices and burned incense at the high places, on the hilltops and under every spreading tree.
Therefore the LORD his God handed him over to the king of Aram.4 The Arameans defeated him and took many of his people as prisoners and brought them to Damascus. He was also given into the hands of the king of Israel, who inflicted heavy casualties on him.
References for 2 Chronicles 28:5
In one day Pekah5 son of Remaliah killed a hundred and twenty thousand soldiers in Judah6--because Judah had forsaken the LORD, the God of their fathers.
References for 2 Chronicles 28:6
Zicri, an Ephraimite warrior, killed Maaseiah the king's son, Azrikam the officer in charge of the palace, and Elkanah, second to the king.
The Israelites took captive from their kinsmen7 two hundred thousand wives, sons and daughters. They also took a great deal of plunder, which they carried back to Samaria.8
References for 2 Chronicles 28:8
But a prophet of the LORD named Oded was there, and he went out to meet the army when it returned to Samaria. He said to them, "Because the LORD, the God of your fathers, was angry9 with Judah, he gave them into your hand. But you have slaughtered them in a rage that reaches to heaven.10
References for 2 Chronicles 28:9
And now you intend to make the men and women of Judah and Jerusalem your slaves.11 But aren't you also guilty of sins against the LORD your God?
References for 2 Chronicles 28:10
Now listen to me! Send back your fellow countrymen you have taken as prisoners, for the LORD's fierce anger rests on you.12"
References for 2 Chronicles 28:11
Then some of the leaders in Ephraim--Azariah son of Jehohanan, Berekiah son of Meshillemoth, Jehizkiah son of Shallum, and Amasa son of Hadlai--confronted those who were arriving from the war.
"You must not bring those prisoners here," they said, "or we will be guilty before the LORD. Do you intend to add to our sin and guilt? For our guilt is already great, and his fierce anger rests on Israel."