Jeremiah 40:13-16

13Meanwhile, Johanan son of Kareah and all the commanders of the armies in the field came to Gedaliah at Mizpah 14and said to him, “Are you aware that Baalis king of the Ammonites has sent Ishmael son of Nethaniah to take your life?”

But Gedaliah son of Ahikam did not believe them.

15Then Johanan son of Kareah spoke privately to Gedaliah at Mizpah. “Let me go and kill Ishmael son of Nethaniah,” he said. “No one will know it. Why should he take your life and scatter all the people of Judah who have gathered to you, so that the remnant of Judah would perish?”

16But Gedaliah son of Ahikam said to Johanan son of Kareah, “Do not do such a thing! What you are saying about Ishmael is a lie.”