Exodus 17:11-12

11Whenever Moses aheld up his hand, Israel prevailed, and whenever he lowered his hand, Amalek prevailed. 12But Moseshands grew weary, so they took a stone and put it under him, and he sat on it, while Aaron and bHur held up his hands, one on one side, and the other on the other side. So his hands were steady until the going down of the sun.

Joshua 8:18

18Then the Lord said to Joshua, c“Stretch out the javelin that is in your hand toward Ai, for I will give it into your hand.” And Joshua stretched out the javelin that was in his hand toward the city.
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