Jeremiah 41:11-12

But when Johanan, the son of Kareah, and all the captains of the armed forces who were with him, had news of all the evil which Ishmael, the son of Nethaniah, had done, They took their men and went out to make war on Ishmael, the son of Nethaniah, and they came face to face with him by the great waters in Gibeon.