1 The whole congregation of the children of Israel set out from the wilderness of Sin, traveling in stages as the LORD directed, and they camped at Rephidim. But there was no water there for the people to drink.
2 So the people quarreled with Moses. "Give us water to drink," they said. Moses answered them, "Why are you quarreling with me? Why are you putting the LORD to the test?"
3 But the people were thirsty there for water, and they grumbled against Moses and said, "Why did you bring us up out of Egypt, only to kill us and our children and our livestock with thirst?"
4 Then Moses cried out to the LORD, "What am I to do with this people? A little more and they will stone me!"
5 The LORD answered Moses, "Go on ahead of the people, and take some of the elders of Israel with you. Take in your hand the staff you used to strike the Nile, and go.
6 I will stand there before you on the rock at Horeb. You are to strike the rock, and water will come out of it for the people to drink." Moses did this in the sight of the elders of Israel.
7 He named the place Massah and Meribah, because the children of Israel quarreled there and because they put the LORD to the test, saying, "Is the LORD among us or not?"
8 Then Amalek came and attacked Israel at Rephidim.
9 Moses said to Joshua, "Pick out men for us and go out and fight Amalek. Tomorrow I will stand on top of the hill with the staff of God in my hand."
10 Joshua did what Moses had told him and fought Amalek, while Moses, Aaron and Hur went up to the top of the hill.
11 As long as Moses kept his hand raised, Israel was winning; but whenever he let his hand down, Amalek was winning.
12 When Moses' hands grew heavy, they took a stone and set it under him, and he sat on it. Aaron and Hur held up his hands, one on one side and one on the other, so that his hands stayed steady until sunset.
13 So Joshua defeated Amalek and his people with the edge of the sword.
14 Then the LORD said to Moses, "Write this in a book as something to be remembered, and make sure Joshua hears it: I will completely wipe out the memory of Amalek from under the heavens."
15 Moses built an altar and named it The LORD Is My Banner.
16 He said, "A hand is on the throne of the LORD; the LORD will be at war with Amalek from generation to generation."