The First Apology Of Justin by Justin Martyr
Chapter LXII.--Its imitation by demons.
And the devils, indeed, having heard this washing published by the prophet, instigated those who enter their temples, and are about to approach them with libations and burnt-offerings, also to sprinkle themselves; and they cause them also to wash themselves entirely, as they depart [from the sacrifice], before they enter into the shrines in which their images are set. And the command, too, given by the priests to those who enter and worship in the temples, that they take off their shoes, the devils, learning what happened to the above-mentioned prophet Moses, have given in imitation of these things. For at that juncture, when Moses was ordered to go down into Egypt and lead out the people of the Israelites who were there, and while he was tending the flocks of his maternal uncle in the land of Arabia, our Christ conversed with him under the appearance of fire from a bush, and said, |Put off thy shoes, and draw near and hear.| And he, when he had put off his shoes and drawn near, heard that he was to go down into Egypt and lead out the people of the Israelites there; and he received mighty power from Christ, who spoke to him in the appearance of fire, and went down and led out the people, having done great and marvellous things; which, if you desire to know, you will learn them accurately from his writings.