“If they do not believe you or pay attention to the former sign, then they may believe the latter sign.

You will also take in your hand this staff, with which you will do the signs.”

But I will harden Pharaoh’s heart, and although I will multiply my signs and my wonders in the land of Egypt,

I will put a division between my people and your people. This sign will take place tomorrow.”’”

Moses told Aaron all the words of the Lord who had sent him and all the signs that he had commanded him.

Aaron spoke all the words that the Lord had spoken to Moses and did the signs in the sight of the people,

It will be for a sign on your hand and for frontlets on your forehead, for with a mighty hand the Lord brought us out of Egypt.”

He replied, “Surely I will be with you, and this will be the sign to you that I have sent you: When you bring the people out of Egypt, you and they will serve God on this mountain.”

And if they do not believe even these two signs or listen to you, then take some water from the Nile and pour it out on the dry ground. The water you take out of the Nile will become blood on the dry ground.”

The Lord said to Moses, “Go to Pharaoh, for I have hardened his heart and the heart of his servants, in order to display these signs of mine before him,

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.”

The blood will be a sign for you on the houses where you are, so that when I see the blood I will pass over you, and this plague will not fall on you to destroy you when I attack the land of Egypt.

It will be a sign for you on your hand and a memorial on your forehead, so that the law of the Lord may be in your mouth, for with a mighty hand the Lord brought you out of Egypt.

“Tell the Israelites, ‘Surely you must keep my Sabbaths, for it is a sign between me and you throughout your generations, that you may know that I am the Lord who sanctifies you.

It is a sign between me and the Israelites forever; for in six days the Lord made the heavens and the earth, and on the seventh day he rested and was refreshed.’”