2 Kings 25:23-25

231When all the captains of the forces, they and their men, heard that the king of Babylon had appointed Gedaliah governor, they came to Gedaliah to 2Mizpah, namely, Ishmael the son of Nethaniah, and Johanan the son of Kareah, and Seraiah the son of Tanhumeth the Netophathite, and Jaazaniah the son of the Maacathite, they and their men. 24Gedaliah swore to them and their men and said to them, “Do not be afraid of the servants of the Chaldeans; live in the land and serve the king of Babylon, and it will be well with you.”

253But it came about in the seventh month, that Ishmael the son of Nethaniah, the son of Elishama, of the royal 4family, came 5with ten men and struck Gedaliah down so that he died along with the Jews and the Chaldeans who were with him at Mizpah.