Go forth from Babylon, flee from the Chaldeans, with a voice of singing declare you, tell this, utter it even to the end of the earth; say, The LORD has redeemed his servant Jacob.
All Commentaries on Isaiah 48:20 Go To Isaiah 48
Augustine of Hippo
AD 430
“Come forth out of Babylon.” If we take the command of the prophet in a spiritual sense, it means that we should fly from the city of this world, from the fellowship of wicked angels and wicked [people], with the feet of that faith that works through love, and we should press onward unceasingly toward the living God.