Multitudes, multitudes in the valley of decision: for the day of the LORD is near in the valley of decision. Multitudes, multitudes, [hªmoniym]. The twice mention of the multitudes does not refer to the good and bad, for it is only the bad that are spoken of here; but crowds on crowds. The Hebrew is akin in sound and meaning to our hum-the hum of a multitude. The primary judgment here meant is not the final one of the living and the dead; but the final judgment on Antichrist and his followers. The prophet in vision seeing the immense array of nations congregating, exclaims, "Multitudes, multitudes!" a Hebraism for immense multitudes.
In the valley of decision - i:e., the valley in which they are to meet their determined doom. The same as "the valley of Jehoshaphat" - i:e., 'the valley of judgment' (note, Joel 3:2). Compare Joel 3:12, "there will I sit to judge," which confirms the English version rather than margin, 'threshing.' The repetition of "valley of decision" heightens the effect, and pronounces the awful certainty of their doom.