But Moses' hands were heavy; and they took a stone, and put it under him, and he sat on it; and Aaron and Hur held up his hands, the one on the one side, and the other on the other side; and his hands were steady until the going down of the sun.
All Commentaries on Exodus 17:12 Go To Exodus 17
John Chrysostom
AD 407
See how the type was given through Moses but the truth came through Jesus Christ. And again, on Mt. Sinai, when the Amalekites were waging war on the Hebrews, the hands of Moses were propped up, held by Aaron and Hur standing on either side. But Christ, when he came, himself held his hands extended on the cross by his own power. Do you see how the type “was given” and “the truth came”? Homilies on the Gospel of John