Cyril of Jerusalem, on Exod 29:4

“And thou shalt bring Aaron and his sons to the door of the tabernacle of the testimony. And when thou hast washed the father and his sons with water,”

“The high priest washes himself, then offers incense; for Aaron was first washed, then became high priest. For how could one who had not yet been cleansed by water pray for others? Further, the laver had been set within the tabernacle, as a symbol of baptism.”

Imported from an open dataset — not yet checked against the printed edition.