Exodus 17:3-7 NABRE
Here, then, in their thirst for water, the people grumbled against Moses, saying, “Why then did you bring us up out of Egypt? To have us die of thirst with our children and our livestock?” So Moses cried out to the LORD, “What shall I do with this people? A little more and they will stone me!” The LORD answered Moses: Go on ahead of the people, and take along with you some of the elders of Israel, holding in your hand, as you go, the staff with which you struck the Nile. I will be standing there in front of you on the rock in Horeb. Strike the rock, and the water will flow from it for the people to drink. Moses did this, in the sight of the elders of Israel. The place was named Massah and Meribah, because the Israelites quarreled there and tested the LORD, saying, “Is the LORD in our midst or not?”
Battle with Amalek.
NABRE: New American Bible, revised edition