Exodus 17:11-13

New Living Translation

¹¹ As long as Moses held up the staff in his hand, the Israelites had the advantage. But whenever he dropped his hand, the Amalekites gained the advantage. ¹² Moses’ arms soon became so tired he could no longer hold them up. So Aaron and Hur found a stone for him to sit on. Then they stood on each side of Moses, holding up his hands. So his hands held steady until sunset. ¹³ As a result, Joshua overwhelmed the army of Amalek in battle.