16:13 Then I saw three impure spirits that looked like frogs; they came out of the mouth of the dragon, out of the mouth of the beast and out of the mouth of the false prophet.
Then I saw three IMPURE SPIRITS that looked like frogs;
In the Old Testament, frogs were considered impure animals (Leviticus 11:9-12,41-45), so it is appropriate here for John to say these IMPURE 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 IMPURE 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 IMPURE 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.
They (words) came
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 IMPURE SPIRITS.
Compare what comes out of Jesus Christ's mouth in Revelation 1:16 and Revelation 2:12,16.