And the LORD spoke unto Moses and unto Aaron, saying,
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Augustine of Hippo
AD 430
Here indeed there was no need to use the service of the voice, for which Aaron was provided out of necessity, on account of the weakness of Moses’ voice. But the staff was to be cast down so that it would become a serpent. Why did Moses himself not do this, except because that mediation of Aaron himself between Moses and Pharaoh was the symbol of some great matter? Questions on Exodus
Great indeed was Moses, who afflicted Egypt grievously and saved his people by many signs and prodigies, who went within the cloud and instituted the twofold law: the law of the letter without and the law of the spirit within. Aaron also, the brother of Moses according to the flesh and the spirit, sacrificed and prayed on behalf of the people, as consecrated minister of the great and holy tabernacle, “which the Lord has erected and not man.” Oration , On St.