It was the 14th of Nisan. That night the disciples would eat the Passover with their Master. They knew the drill. Preparations had to be made. They just needed to know where. So, they asked Jesus, “Where do you want us to go and prepare for you to eat the Passover?” (Mk 14:12, NAS). Jesus takes two of them aside, Peter and John (Lk 22:8), and gives them instructions.
Go into the city, and a man will meet you carrying a pitcher of water; follow him; and wherever he enters, say to the owner of the house, The Teacher says, “ Where is My guest room in which I may eat the Passover with My disciples?” And he will show you a large upper room furnished and ready; prepare for us there. The disciples went out and came to the city and found it just as He had told them; and they prepared the Passover (Mk 14:13-16 NAS).