Jeremiah 40:11-15

Likewise, also all the Jews who were in Moab and among the sons of Ammon and in Edom, and who were in all the other countries, heard that the king of Babylon had left a remnant for Judah, and that he had appointed over them Gedaliah the son of Ahikam, the son of Shaphan.

Then all the Jews returned from all the places to which they had been scattered and came to the land of Judah, to Gedaliah at Mizpah, and gathered wine and summer fruit in great abundance.

Now Johanan the son of Kareah and all the commanders of the forces that were in the field came to Gedaliah at Mizpah,

and said to him, “Are you well aware that Baalis the king of the sons of Ammon has sent Ishmael the son of Nethaniah to take your life?” But Gedaliah the son of Ahikam did not believe them.

Then Johanan the son of Kareah spoke secretly to Gedaliah in Mizpah, saying, “Let me go and kill Ishmael the son of Nethaniah, and no one will know! Why should he take your life, so that all the Jews who are gathered to you would be scattered and the remnant of Judah would perish?”