Jeremiah 40:15-16

15Then Johanan the son of Kareah spoke secretly to Gedaliah in Mizpah, saying, “1Let me go and kill Ishmael the son of Nethaniah, and not a man will know! Why should he 2take your life, so that all the Jews who are gathered to you would be scattered and the 3remnant of Judah would perish?”

16But Gedaliah the son of Ahikam said to Johanan the son of Kareah, “4Do not do this thing, for you are telling a lie about Ishmael.”