94 I know also that not even bodily blemishes in either priests or victims passed without notice, but that it was required by the law that perfect sacrifices must be offered by perfect men— a symbol, I take it, of integrity of soul. It was not lawful for everyone to touch the priestly vesture, or any of the holy vessels; nor might the sacrifices themselves be consumed except by the proper persons, and at the proper time and place; nor might the anointing oil nor the compounded incense be imitated; nor might anyone enter the temple who was not in the most minute particular pure in both soul and body; so far was the Holy of holies removed from presumptuous access, that it might be entered by one man only once a year; so far were the veil, and the mercy-seat, and the ark, and the Cherubim, from the general gaze and touch.
Source: Orations (New Advent)