Jeremiah 40:16 in the King James Version
But Gedaliah the son of Ahikam said unto Johanan the son of Kareah, Thou shalt not do this thing: for thou speakest falsely of Ishmael.
Context
15 Then Johanan the son of Kareah spoke to Gedaliah in Mizpah secretly, saying, “Please let me go, and I will kill Ishmael the son of Nethaniah, and no man will know it. Why should he take your life, that all the Jews who are gathered to you should be scattered, and the remnant of Judah perish?”
16 But Gedaliah the son of Ahikam said to Johanan the son of Kareah, “You shall not do this thing, for you speak falsely of Ishmael.”