Guest-Chamber

Concise Bible Dictionary:

It is recorded that in Jerusalem at the time of the feasts, when so many persons came from distant places, those living in the city who were able, gave up a room for the use of any that came to worship, hence the term “guest-chamber.” The disciples found such a room ready furnished and prepared, where the Lord kept the last Passover with His disciples (Mark 14:1414And wheresoever he shall go in, say ye to the goodman of the house, The Master saith, Where is the guestchamber, where I shall eat the passover with my disciples? (Mark 14:14); Luke 22:1111And ye shall say unto the goodman of the house, The Master saith unto thee, Where is the guestchamber, where I shall eat the passover with my disciples? (Luke 22:11)).