Jeremiah 40:7-8, 13-16

When all the captains of the forces in the open country and their men heard that the king of Babylon had appointed Gedaliah the son of Ahikam governor in the land and had committed to him men, women, and children, those of the poorest of the land who had not been taken into exile to Babylon, they went to Gedaliah at Mizpah—Ishmael the son of Nethaniah, Johanan the son of Kareah, Seraiah the son of Tanhumeth, the sons of Ephai the Netophathite, Jezaniah the son of the Maacathite, they and their men.

Now Johanan the son of Kareah and all the leaders of the forces in the open country came to Gedaliah at Mizpah and said to him, “Do you know that Baalis the king of the Ammonites has sent Ishmael the son of Nethaniah to take your life?” But Gedaliah the son of Ahikam would not believe them. Then Johanan the son of Kareah spoke secretly to Gedaliah at Mizpah, “Please let me go and strike down Ishmael the son of Nethaniah, and no one will know it. Why should he take your life, so that all the Judeans who are gathered about you would be scattered, and the remnant of Judah would perish?” But Gedaliah the son of Ahikam said to Johanan the son of Kareah, “You shall not do this thing, for you are speaking falsely of Ishmael.”