Dedan — Was a city of Arabia joining to Idumea, Isaiah 21:13, they being neighbours to the Edomites are called to flee, and to get into caves, where they might dwell deep in the earth and be in some security.
Related Commentaries of Jeremiah 49:8
Jeremiah 49:8
8 Flee ye, turn back, dwell deep, O inhabitants of Dedan; for I will bring the calamity of Esau upon him, the time that I will visit him.