Exodus 17:2-7

Therefore the people quarreled with Moses and said, “Give us water that we may drink.” And Moses said to them, “Why do you quarrel with me? Why do you test the LORD?” But the people thirsted there for water; and they grumbled against Moses and said, “Why, now, have you brought us up from Egypt, to kill us and our children and our livestock with thirst?” So Moses cried out to the LORD, saying, “What shall I do to this people? A little more and they will stone me.” Then the LORD said to Moses, “Pass before the people and take with you some of the elders of Israel; and take in your hand your staff with which you struck the Nile, and go. Behold, I will stand before you there on the rock at Horeb; and you shall strike the rock, and water will come out of it, that the people may drink.” And Moses did so in the sight of the elders of Israel. He named the place Massah and Meribah because of the quarrel of the sons of Israel, and because they tested the LORD, saying, “Is the LORD among us, or not?”