11 When Moses held up his hand, Israel prevailed. But when he let down his hand, the Amalekites prevailed.
12 Moses’ hands grew heavy, so they took a stone, put it under him, and he sat down. Aaron and Hur held up his hands, one on each side. So his hands were steady until the sun went down.
13 So Joshua overpowered the Amalekites and his army with the edge of the sword.
14 Adonai said to Moses, “Write this for a memorial in the book, and rehearse it in the hearing of Joshua, for I will utterly blot out the memory of the Amalekites from under heaven.”
15 Then Moses built an altar, and called the name of it Adonai-Nissi.
16 Then he said, “By the hand upon the throne of Adonai, Adonai will have war with Amalek from generation to generation.”