15 The serpent spewed water out of his mouth after the woman like a river, that he might cause her to be carried away by the stream.
And the serpent poured water on her like a river out of his mouth – the NASB reads “poured,” ἔβαλεν means “cast” or for a serpent, “spewed.”
swept away by the flood – Daniel said “the end of it (the sanctuary, the kingdom of heaven) shall be with a flood,” Dan 9:26. The description “swept away by the flood” probably refers to the Great persecution, from 303 to 313. This was Satan’s greatest attempt to eliminate the kingdom of heaven through the political power of Rome. This explains the “ten days” in Rev 2:10 as ten years; consistent with the day-year relationships that is a rule throughout Daniel and Revelation.