Declare ye among the nations, and proclaim, and set up a standard; proclaim, [and] conceal not: say, (a) Babylon is taken, Bel is confounded, (b) Merodach is broken in pieces; her idols are confounded, her images are broken in pieces.
(a) After God had used the Babylonian's service to punish other nations, this shows that their turn will come to be punished.
(b) These were two of their chief idols.