Exodus 17:12-14

New International Version - UK

¹² When Moses’ hands grew tired, they took a stone and put it under him and he sat on it. Aaron and Hur held his hands up – one on one side, one on the other – so that his hands remained steady till sunset. ¹³ So Joshua overcame the Amalekite army with the sword.

¹⁴ Then the Lord said to Moses, ‘Write this on a scroll as something to be remembered and make sure that Joshua hears it, because I will completely blot out the name of Amalek from under heaven.’