Jeremiah 4:15

For a voice declareth from Dan - Dan was a city in the tribe of Dan, north of Jerusalem; the first city in Palestine, which occurs in the way from Babylon to Jerusalem.

Affliction from Mount Ephraim - Between Dan and Jerusalem are the mountains of Ephraim. These would be the first places attacked by the Chaldeans; and the rumor from thence would show that the land was invaded.