Jeremiah 4:15 - Matthew Poole's English Annotations on the Holy Bible

A voice, i.e. either the voice of the prophets, that is still sounding it in your ears, and declaring it unto you; or rather, the rumour and noise of this army is already come through your land; you have the heavy tidings of this great affliction, Jeremiah 8:16, to note the near approach of it. Declareth from Dan: this is said to come from Dan and Ephraim, because Dan was the first place these Chaldeans must come to, it being the utmost boundary of Canaan northward, and Ephraim the innermost border of Israel in the north of Judea, intimating the march of the Babylonians through all Israel toward Jerusalem.