Set up — These seem to be the prophet's words to the Babylonians, rousing them out of their security. Historians tell us that the city was fortified by walls of fifty cubits high, and two hundred cubits broad, and by a very deep and large ditch.
Related Commentaries of Jeremiah 51:12
Jeremiah 51:12
12 Set up the standard upon the walls of Babylon, make the watch strong, set up the watchmen, prepare the ambushes:c for the LORD hath both devised and done that which he spake against the inhabitants of Babylon.