Joshua 8:18

8:18 The Lord told Joshua, “Hold out toward Ai the curved sword in your hand, for I am handing the city over to you.” So Joshua held out toward Ai the curved sword in his hand.

Exodus 17:11-12

17:11 Whenever Moses would raise his hands, then Israel prevailed, but whenever he would rest his hands, then Amalek prevailed. 17:12 When the hands of Moses became heavy, they took a stone and put it under him, and Aaron and Hur held up his hands, one on one side and one on the other, and so his hands were steady until the sun went down.