Pacian of Barcelona : The place is the church, the rock is the Lord, Moses is the multitude of the people of Israel, who did not believe in the Lord when he preached on the earth. So that multitude stood on the rock and beheld the back parts of the Lord as he passed by. After the Lord's passion and ascension they were led into the church and merited to receive faith in Christ. They did not recognize him face to face on earth but later acknowledged him "from behind." Exposition of the Old and New Testament, Exodus Paterius : The place is the church, the rock is the Lord, Moses is the multitude of the people of Israel, who did not believe in the Lord when he preached on the earth. So that multitude stood on the rock and beheld the back parts of the Lord as he passed by. After the Lord's passion and ascension they were led into the church and merited to receive faith in Christ. They did not recognize him face to face on earth but later acknowledged him "from behind." — EXPOSITION OF THE OLD AND NEW TESTAMENT, Exodus 58