2 And if thou refuse to let [them] go, behold, I will smite all thy borders with frogs. 3 And the river shall swarm with frogs, and they shall go up and come into thy house, and into thy bedroom, and upon thy bed, and into the house of thy bondmen, and upon thy people, and into thine ovens, and into thy kneading-troughs. 4 And the frogs shall come up both upon thee and upon thy people, and upon all thy bondmen. 5 And Jehovah said to Moses, Say unto Aaron, Stretch out thy hand with thy staff over the streams, over the rivers, and over the ponds, and cause frogs to come up on the land of Egypt. 6 And Aaron stretched out his hand over the waters of Egypt; and the frogs came up, and covered the land of Egypt. 7 And the scribes did so with their sorceries, and brought up frogs on the land of Egypt.
Matthew Henry's Commentary on Exodus 8:2-7
Commentary on Exodus 8:1-15
(Read Exodus 8:1-15)
Pharaoh is plagued with frogs; their vast numbers made them sore plagues to the Egyptians. God could have plagued Egypt with lions, or bears, or wolves, or with birds of prey, but he chose to do it by these despicable creatures. God, when he pleases, can arm the smallest parts of the creation against us. He thereby humbled Pharaoh. They should neither eat, nor drink, nor sleep in quiet; but wherever they were, they should be troubled by the frogs. God's curse upon a man will pursue him wherever he goes, and lie heavy upon him whatever he does. Pharaoh gave way under this plague. He promises that he will let the people go. Those who bid defiance to God and prayer, first or last, will be made to see their need of both. But when Pharaoh saw there was respite, he hardened his heart. Till the heart is renewed by the grace of God, the thoughts made by affliction do not abide; the convictions wear off, and the promises that were given are forgotten. Till the state of the air is changed, what thaws in the sun will freeze again in the shade.