Exodus 7:11,22
Then Pharaoh also called the wise men and the sorcerers: now the magicians of Egypt, they also did in like manner with their enchantments.
Torrey's Topical Textbook—AKJV

Exodus 8:7
And the magicians did so with their enchantments, and brought up frogs on the land of Egypt.
Torrey's Topical Textbook—AKJV