This is the water of Meribah; because the children of Israel strove with the LORD, and he was sanctified in them.
Numbers 26:9
And the sons of Eliab; Nemuel, and Dathan, and Abiram. This is that Dathan and Abiram, which were famous in the congregation, who strove against Moses and against Aaron in the company of Korah, when they strove against the LORD: