Then God said, “Let lights appear in the sky to separate the day from the night. Let them be signs to mark the seasons, days, and years.

Then God said, “I am giving you a sign of my covenant with you and with all living creatures, for all generations to come.

I have placed my rainbow in the clouds. It is the sign of my covenant with you and with all the earth.

Then God said to Noah, “Yes, this rainbow is the sign of the covenant I am confirming with all the creatures on earth.”

You must cut off the flesh of your foreskin as a sign of the covenant between me and you.

Then Pharaoh removed his signet ring from his hand and placed it on Joseph’s finger. He dressed him in fine linen clothing and hung a gold chain around his neck.

God answered, “I will be with you. And this is your sign that I am the one who has sent you: When you have brought the people out of Egypt, you will worship God at this very mountain.”

Signs of the Lord’s Power

But Moses protested again, “What if they won’t believe me or listen to me? What if they say, ‘The Lord never appeared to you’?”

“Perform this sign,” the Lord told him. “Then they will believe that the Lord, the God of their ancestors—the God of Abraham, the God of Isaac, and the God of Jacob—really has appeared to you.”

The Lord said to Moses, “If they do not believe you and are not convinced by the first miraculous sign, they will be convinced by the second sign.

And if they don’t believe you or listen to you even after these two signs, then take some water from the Nile River and pour it out on the dry ground. When you do, the water from the Nile will turn to blood on the ground.”

And take your shepherd’s staff with you, and use it to perform the miraculous signs I have shown you.”

Moses then told Aaron everything the Lord had commanded him to say. And he told him about the miraculous signs the Lord had commanded him to perform.

Aaron told them everything the Lord had told Moses, and Moses performed the miraculous signs as they watched.

But I will make Pharaoh’s heart stubborn so I can multiply my miraculous signs and wonders in the land of Egypt.

I will make a clear distinction between my people and your people. This miraculous sign will happen tomorrow.’”

A Plague of Locusts

Then the Lord said to Moses, “Return to Pharaoh and make your demands again. I have made him and his officials stubborn so I can display my miraculous signs among them.

I’ve also done it so you can tell your children and grandchildren about how I made a mockery of the Egyptians and about the signs I displayed among them—and so you will know that I am the Lord.”

But the blood on your doorposts will serve as a sign, marking the houses where you are staying. When I see the blood, I will pass over you. This plague of death will not touch you when I strike the land of Egypt.

This annual festival will be a visible sign to you, like a mark branded on your hand or your forehead. Let it remind you always to recite this teaching of the Lord: ‘With a strong hand, the Lord rescued you from Egypt.’

“Tell the people of Israel: ‘Be careful to keep my Sabbath day, for the Sabbath is a sign of the covenant between me and you from generation to generation. It is given so you may know that I am the Lord, who makes you holy.

It is a permanent sign of my covenant with the people of Israel. For in six days the Lord made heaven and earth, but on the seventh day he stopped working and was refreshed.’”

“Make two trumpets of hammered silver for calling the community to assemble and for signaling the breaking of camp.

“When you sound the signal to move on, the tribes camped on the east side of the Tabernacle must break camp and move forward.

When you sound the signal a second time, the tribes camped on the south will follow. You must sound short blasts as the signal for moving on.