Exodus 8:2

However, if you refuse to let them go, hear this: I am going to strike your entire land with frogs.

Exodus 7:14

Then the Lord said to Moses, “Pharaoh’s heart is hard; he refuses 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 among them swarms of flies which devoured them,
And frogs which destroyed them.

Psalm 105:30


Their land swarmed with frogs,
Even in the chambers of their kings.

Revelation 16:13-14

And I saw three loathsome spirits like frogs, leaping from the mouth of the dragon (Satan) and from the mouth of the beast (Antichrist, dictator) and from the mouth of the false prophet;

Treasury of Scripture Knowledge

Summary

And if thou refuse to let them go, behold, I will smite all thy borders with frogs:

General references

Bible References

Refuse

Exodus 7:14
Then the Lord said to Moses, “Pharaoh’s heart is hard; he refuses to let the people go.
Exodus 9:2
But if you refuse to let them go and continue to hold them,

Frogs

Psalm 78:45

He sent among them swarms of flies which devoured them,
And frogs which destroyed them.
Psalm 105:30

Their land swarmed with frogs,
Even in the chambers of their kings.
Revelation 16:13
And I saw three loathsome spirits like frogs, leaping from the mouth of the dragon (Satan) and from the mouth of the beast (Antichrist, dictator) and from the mouth of the false prophet;

General references

Exodus 9:2
But if you refuse to let them go and continue to hold them,