Ask thee a sign of the LORD thy God; ask it either in the depth, or in the height above.
And the LORD said unto him, What is that in thine hand? And he said, A rod.
And he said, Cast it on the ground. And he cast it on the ground, and it became a serpent; and Moses fled from before it.
And thou shalt take this rod in thine hand, wherewith thou shalt do signs.
Then answered the Jews and said unto him, What sign shewest thou unto us, seeing that thou doest these things?
They said therefore unto him, What sign shewest thou then, that we may see, and believe thee? what dost thou work?