Jeremiah 4:15

Already a voice, probably that of a watchman, from Dan in the far north, and from Mount Ephraim, in the north but much closer to Judah, was heard warning of the coming invader. Mount Ephraim is a reference to the mountains in the territory of Ephraim. [Note: See Yohanan Aharoni and Michael Avi-Yonah, The Macmillan Bible Atlas, maps 8, 64, 86, 113, and 125. This was "the last large section of Palestine to be crossed before one reaches Jerusalem" (Graybill, p. 663).] This voice may refer to the testimony of the Northern Kingdom that had already been overrun by another similar invader from the north, Assyria.