9 And Moses said unto Joshua, Choose us out men, and go out, fight with Am´alek: tomorrow I will stand on the top of the hill with the rod of God in mine hand.
10 So Joshua did as Moses had said to him, and fought with Am´alek: and Moses, Aaron, and Hur went up to the top of the hill.
11 And it came to pass, when Moses held up his hand, that Israel prevailed: and when he let down his hand, Am´alek prevailed.
12 But Moses' hands were heavy; and they took a stone, and put it under him, and he sat thereon; and Aaron and Hur stayed up his hands, the one on the one side, and the other on the other side; and his hands were steady until the going down of the sun.
13 And Joshua discomfited Am´alek and his people with the edge of the sword.
14 And the Lord said unto Moses, Write this for a memorial in a book, and rehearse it in the ears of Joshua: for I will utterly put out the remembrance of Am´alek from under heaven.
15 And Moses built an altar, and called the name of it Jehovah–nis´si: