Cyrill of Alexandria
The Levites are thus designated to serve as assistants or attendants to the priesthood. They are to be vigilant for Aaron, overseeing all the components of the tabernacle of meeting and remaining watchful for the children of Israel. This role signifies their supportive function. Aaron and his sons are placed over the tabernacle, tasked with the responsibility to safeguard all the elements of the tabernacle of meeting, including the inner veil, which symbolizes the sacred and enigmatic matters associated with those who approach the Divine altar. This imagery clearly points to Christ, whom the Father has appointed over His household, 'His house being us' (Heb. 3:6).