2 Chronicles 28:6-8 NIV

6 In one day Pekah1 son of Remaliah killed a hundred and twenty thousand soldiers in Judah2--because Judah had forsaken the LORD, the God of their fathers.

References for 2 Chronicles 28:6

7 Zicri, an Ephraimite warrior, killed Maaseiah the king's son, Azrikam the officer in charge of the palace, and Elkanah, second to the king.
8 The Israelites took captive from their kinsmen3 two hundred thousand wives, sons and daughters. They also took a great deal of plunder, which they carried back to Samaria.4

References for 2 Chronicles 28:8