After making his offering, as he was wont, he remained within at the rail, but once more the great Ambrosius kept not silence and taught him the distinction of places. First he asked him if he wanted anything; and when the emperor said that he was waiting for participation in the divine mysteries, Ambrose sent word to him by the chief deacon and said, “The inner place, sir, is open only to priests; to all the rest it is inaccessible; go out and stand where others stand; purple can make emperors, but not priests.” This instruction too the faithful emperor most gladly received, and intimated in reply that it was not from any audacity that he had remained within the rails, but because he had understood that this was the custom at Constantinople. “I owe thanks,” he added, “for being cured too of this error.”