Jeremiah's Eighth Prophecy (see book comments for Jeremiah).
Euphrates. On the road to Babylon, this river would be first met with at Carchemish, then held by the Egyptians (Jeremiah 46:2).
Related Commentaries of Jeremiah 13:4
Jeremiah 13:4
4 Take the girdle that thou hast got, which is upon thy loins, and arise, go to Euphrates, and hide it there in a hole of the rock.