Exodus 17:5-6

New American Standard Bible

⁵ Then the Lord said to Moses, “Pass before the people and take with you some of ^(A)the elders of Israel; and take in your hand your staff with which ^(B)you struck the Nile, and go. ⁶ Behold, I will stand before you there on the rock at ^(C)Horeb; and ^(D)you shall strike the rock, and water will come out of it, so that the people may drink.” And Moses did so in the sight of the elders of Israel.