Exodus 3:20

3:20 So I will extend my hand and strike Egypt with all my wonders that I will do among them, and after that he will release you.

Exodus 7:5

7:5 Then the Egyptians will know that I am the Lord, when I extend my hand over Egypt and bring the Israelites out from among them.

Exodus 8:16

The Third Blow: Gnats

8:16 The Lord said to Moses, “Tell Aaron, ‘Extend your staff and strike the dust of the ground, and it will become gnats throughout all the land of Egypt.’”

Exodus 14:26

14:26 The Lord said to Moses, “Extend your hand toward the sea, so that the waters may flow back on the Egyptians, on their chariots, and on their horsemen!”