Ex 17:11-13 It turned out that whenever Moses raised his hands, Israel was winning, but whenever he lowered his hands, Amalek was winning. 12 But Moses' hands got tired. So they got a stone and set it under him. He sat on it and Aaron and Hur held up his hands, one on each side. So his hands remained steady until the sun went down. 13 Joshua defeated Amalek and its army in battle. Faith AND works