# cause them to listen ... cause them to listen

This phrase is repeated to emphasize the importance of the command.

# Lift up a signal

"Put up a sign"

# Babylon is taken

"Babylon is conquered"

# Bel is made ashamed. Marduk is dismayed. Its idols are put to shame; its images are dismayed

These lines emphasize that Yahweh has disgraced the gods of Babylon.

# Bel ... Marduk

These are two names for the chief god of Babylon.