Exodus 17
6 Ref Behold, I will stand before you there on the rock in Horeb. You shall strike the rock, and water will come out of it, that the people may drink." Moses did so in the sight of the elders of Israel.
7 Ref He called the name of the place Massah,{Massah means testing.} and Meribah,{Meribah means quarreling.} because the children of Israel quarreled, and because they tested Yahweh, saying, "Is Yahweh among us, or not?"