And Moses lifted up his hand, and with his rod he struck the rock twice: and the water came out abundantly, and the congregation drank, and their animals also.
All Commentaries on Numbers 20:11 Go To Numbers 20
Caesarius of Arles
AD 542
“Therefore Moses struck the rock twice with his staff.” What does this mean, brethren? I do not think it is without mystery. What does it mean that the rock was not struck once but twice with the staff? The rock was struck a second time because two trees were lifted up for the gibbet of the cross: the one stretched out Christ’s sacred hands, the other spread out his sinless body from head to foot.