Exodus 17:8-10

Darby Translation

⁸ And Amalek came and fought with Israel in Rephidim.

⁹ And Moses said to Joshua, Choose us men, and go out, fight with Amalek; to-morrow I will stand on the top of the hill with the staff of God in my hand.

¹⁰ And Joshua did as Moses had said to him, to fight with Amalek; and Moses, Aaron and Hur went up to the top of the hill.