Exodus 7:5

5The Egyptians a  shall know that I am the  Lord, when I stretch out my hand against Egypt and bring out the people of Israel from among them.”

Exodus 7:17

17Thus says the  Lord, “By this b  you shall know that I am the  Lord: behold, with the staff that is in my hand I will strike the water that is in the Nile, and c  it shall turn into blood.

Exodus 14:4

4And d  I will harden Pharaoh’s heart, and he will pursue them, and I will e  get glory over Pharaoh and all his host, f  and the Egyptians shall know that I am the  Lord.” And they did so.

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