^16:13And I saw coming out of the mouth of the dragon and out of the mouth of the beast and out of the mouth of the false prophet, three unclean spirits like frogs;

And I saw coming out of the mouth

Words come out of the mouth. Here these words are evil with the intent to cause an insurrection or jihad. We know these are blasphemous lies because they are equated with UNCLEAN SPIRITS.

Compare what comes out of Jesus Christ's mouth in Revelation 1:16 and Revelation 2:12,16.

1. of the DRAGON and ....
   Out of the DRAGON's mouth a river flowed (Revelation 12:15) trying to kill the woman with child.
2. of the BEAST and ....
   The (sea) BEAST spoke arrogant words and blasphemies (Revelation 13:5)
3. of the FALSE PROPHET,
   The FALSE PROPHET tells the earth dwellers to make an image of the BEAST and then to WORSHIP it (Revelation 13:14). Nonworshippers are to be KILLED (Revelation 13:15). This is the first time the words "FALSE PROPHET" are used in reference to the 'earth BEAST'.

three UNCLEAN SPIRITS like frogs;

In the Old Testament, frogs were considered unclean animals (Leviticus 11:9-12,41-45), so it is appropriate here for John to say these UNCLEAN SPIRITS looked LIKE frogs. These are not real frogs. However, like real frogs, they multiply rapidly, are noisy in the dark (night), and can jump great distances (compared to their body size). These UNCLEAN SPIRITS spread throughout the whole world (next verse).

If, as we have discussed before, spirits need water to exist in, then these 'frogs' may of necessity have spread across the globe because the Euphrates River has been dried up. The tadpole stage in the frog's life cycle requires water or the frogs will die out. One can conclude that when the Euphrates River dries up (previous verse), literally, the UNCLEAN SPIRITS will be on the move over the whole world. This is one of the few places in Revelation where the literal and symbolic become codependent. Otherwise, both the literal and the symbolic can be expected to happen in parallel.