50:21-32 The forces are mustered and empowered to destroy Babylon. Let them do what God demands, and they shall bring to pass what he threatens. The pride of men's hearts sets God against them, and ripens them apace for ruin. Babylon's pride must be her ruin; she has been proud against the Holy One of Israel; who can keep those up whom God will throw down?

23. hammer—that is, Babylon, so called because of its ponderous destructive power; just as "Martel," that is, "a little hammer," was the surname of a king of the Franks (Isa 14:6).