Thematic Bible: Water brought from the rock

Then the LORD told Moses, "Go over in front of the people and take some of the elders of Israel with you. Take in your hand the staff with which you struck the Nile, and go. I'll be standing there in front of you on the rock at Horeb. You are to strike the rock and water will come out of it, so the people can drink." Moses did this in front of the elders of Israel.