Melachim Bais 6:32

But Elishah sat in his bais, and the Zekenim sat with him; and he sent an ish ahead of him; but before the malach came to him, he said to the Zekenim, See ye how this ben hameratze'ach (son of a murderer) hath sent to cut off mine rosh? Look, when the malach cometh, shut the delet (door), and hold him shut out by the delet; is not the sound of the raglei adonav behind him?