Exodus 17:6-8

Complete Jewish Bible

⁶ I will stand in front of you there on the rock in Horev. You are to strike the rock, and water will come out of it, so the people can drink.” Moshe did this in the sight of the leaders of Isra’el. ⁷ The place was named Massah [testing] and M’rivah [quarreling] because of the quarreling of the people of Isra’el and because they tested Adonai by asking, “Is Adonai with us or not?”

⁸ Then ‘Amalek came and fought with Isra’el at Refidim.