Pseudo-Jerome — as excerpted in the Catena Aurea on Mark 14:12-16

“That is, him who leads to the lofty place, where is the refreshment prepared by Christ. (John 21:15) The lord of the house is the Apostle Peter, to whom the Lord has entrusted His house, that there may be one faith under one Shepherd. The large upper-room is the wide-spread Church, in which the name of the Lord is spoken of, prepared by a variety of powers and tongues.”