I will take you as My people, and I will be your God. Then you shall know that I am the Lord your God who brings you out from under the burdens of the Egyptians.

Thus says the Lord: “By this you shall know that I am the Lord. Behold, I will strike the waters which are in the river with the rod that is in my hand, and they shall be turned to blood.

“I have heard the complaints of the children of Israel. Speak to them, saying, ‘At twilight you shall eat meat, and in the morning you shall be filled with bread. And you shall know that I am the Lord your God.’ ”