Exodus 7:5
TSK
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.
TSK
Treasury of Scripture Knowledge references in NET.
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.
and in order that in the hearing of your son and your grandson you may tell how I made fools of the Egyptians and about my signs that I displayed among them, so that you may know that I am the Lord.”
Say,‘This is what the Sovereign LORD says:“‘Look, I am against you, Sidon, and I will magnify myself in your midst. Then they will know that I am the LORD when I execute judgments on her and reveal my sovereign power in her.