Exodus
Chapter
Exodus relates the history of the Israelites from after the death of Joseph to the erection of the Tabernacle by Moses. The book includes an account of the wanderings in the wilderness of Sinai and the giving of the Law to the nation.
Exodus 17
17:12 But Moses' hands were heavy; and they took a stone, and put it under him, and he sat thereon; and Aaron and Hur stayed 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.