Exodus 17

The people of Israel travel to Rephidim. There was no water to drink. They demanded water from Moses, who cried out to God for a solution. After God provides water, the Israelites were attacked by a group called Amalek, or the Amalekites.

With the help of Aaron and another Israelite, Hur, Moses held up his arms over Joshua and the Israelites fighting the enemy. The Israelites prevailed, and God commands Moses to document this triumph in a memorial book.