Exodus 17:7-9

New Living Translation

⁷ Moses named the place Massah (which means “test”) and Meribah (which means “arguing”) because the people of Israel argued with Moses and tested the Lord by saying, “Is the Lord here with us or not?”

Israel Defeats the Amalekites

⁸ While the people of Israel were still at Rephidim, the warriors of Amalek attacked them. ⁹ Moses commanded Joshua, “Choose some men to go out and fight the army of Amalek for us. Tomorrow, I will stand at the top of the hill, holding the staff of God in my hand.”