Exodus 4:2-9

2So Adonai said to him, “What is that in your hand?” “A staff,” he said.

3Then He said, “Cast it on the ground.” When he cast it to the ground, it became a serpent, so Moses fled from before it.

4Then Adonai said to Moses, “Stretch out your hand, and take it by the tail.” So he put out his hand, laid hold of it, and it became a staff in his hand.

5“This is so that they may believe Adonai, the God of their fathers—the God of Abra­ham, Isaac and Jacob—has appeared to you.”

6Adonai also said to him, “Now put your hand within your cloak.” So he put his hand inside, and when he took it out, his hand had tza'arat—white as snow.

7Then He said, “Put your hand back into your cloak.” So he put his hand back in, and when he took it out it was restored again as the rest of his skin.

8Then He said, “If they do not believe you, or listen to the voice of the first sign, they will believe the message of the latter sign.

9But if they do not believe even these two signs nor listen to your voice, you are to take the water of the river and pour it on the dry land. The water which you take out of the river will become blood on the ground.”