Jeremiah 41:3
Ishmael also killed all the Jews that were with him, even with Gedaliah, at Mizpah, and the Chaldeans that were found there, and the men of war.
2 Kings 25:25
But it came to pass in the seventh month, that Ishmael the son of Nethaniah, the son of Elishama, of the royal family, came, and ten men with him, and struck down Gedaliah, so that he died, and the Jews and the Chaldeans that were with him at Mizpah.
Ecclesiastes 9:18
Wisdom is better than weapons of war: but one sinner destroys much good.
Jeremiah 41:11-12
But when Johanan the son of Kareah, and all the captains of the forces that were with him, heard of all the evil that Ishmael the son of Nethaniah had done,
Lamentations 1:2
She weeps bitterly in the night, and her tears are on her cheeks: among all her lovers she has none to comfort her: all her friends have dealt treacherously with her, they have become her enemies.