Revelation 16:13
And I saw three unclean spirits that looked like frogs coming out of the mouths of the dragon, the beast, and the false prophet.

Exodus 7:19
And the LORD said to Moses, "Tell Aaron, 'Take your staff and stretch out your hand over the waters of Egypt--over their rivers and canals and ponds and reservoirs--that they may become blood.' There will be blood throughout the land of Egypt, even in the vessels of wood and stone."

Psalm 78:45
He sent swarms of flies that devoured them, and frogs that devastated them.

Psalm 105:30
Their land teemed with frogs, even in their royal chambers.