Exodus 17:5-6

Thomson(i) 5 Upon which the Lord said to Moses, Go on at the head of the people, and take thee some of the elders of the people, and take in thy hand the staff with which thou didst smite the river. 6 And thou shalt go to the place where I before caused thee to stand on the rock at Choreb; and thou shalt smite the rock, and water will gush out that the people may drink. And Moses did so in the presence of the Israelites,