Exodus 8:2
And if you refuse to let them go, then I'm going to strike all your territory with frogs.
Exodus 7:14
Then the LORD told Moses, "Pharaoh's heart is hard. He has refused to let the people go.
Exodus 9:2
But if you refuse to let them go and continue to hold them,
Psalm 78:45
He sent swarms of insects to bite them and frogs to destroy them.
Psalm 105:30
Their land swarmed with frogs even to the chambers of their kings.
Revelation 16:13-14
Then I saw three disgusting spirits like frogs come out of the mouth of the dragon, out of the mouth of the beast, and out of the mouth of the false prophet.