Psalm 78:45
He sent swarms of insects to bite them and frogs to destroy them.
Exodus 8:21-24
But if you don't let my people go, I'll send swarms of insects upon you, your servants, your people, and your households. The houses of Egypt and even the ground on which they stand will be filled with swarms of insects.
Psalm 105:30-31
Their land swarmed with frogs even to the chambers of their kings.
Exodus 8:2-15
And if you refuse to let them go, then I'm going to strike all your territory with frogs.
Revelation 16:3
The second angel poured his bowl into the sea. It became like the blood of a dead body, and every living thing in the sea died.