Cross reference
Exodus 8:6
6 And Aaron stretched out his hand over the waters of Egypt; and the frogs came up, and covered the land of Egypt.
Psalms 78:45
45 He sent divers sorts of flies among them, which devoured them; and frogs, which destroyed them.
Psalms 105:30
30 Their land brought forth frogs in abundance, in the chambers of their kings.
Leviticus 11:12
12 Whatsoever hath no fins nor scales in the waters, that shall be an abomination unto you.
Revelation 16:13
13 And I saw three unclean spirits like frogs come out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet.