Mark 14:14 (ESV) … “and wherever he enters, say to the master of the house, ‘The Teacher says, Where is my guest room, where I may eat the Passover with my disciples?’”
Everything had already been arranged. The disciples followed the man with the pitcher who was evidently a servant. They called for the master of the house, and he took them upstairs where all was ready. The couches, the cushions, and all of the basic furniture were there. The Lord had been ahead of His disciples as always. “Omnipotence,” as the saying goes, “has its servants everywhere.” Despite all of the official enmity, the Lord never lacked a friend who was willing and able to help Him when required. Did He need a boat? Peter had one available. Did He need a donkey, an upper room, or a tomb? Whatever was needed, it was always ready at hand.
Down through the centuries, the Lord’s servants have found it so. Did Paul need a home when preaching at Corinth or Philippi? Aquila and Priscilla were there at Corinth—with a job for Paul in the bargain—and Lydia was there at Philippi. Did he need a scribe? Timothy was there. Did he need a doctor? Luke was available. Who, of the Lord’s servants, could not produce a sizeable list of people who have been there with what was needed when the time came?
Whatever our need may be, the Lord is more than capable to meet that need. We must like the disciples and simply obey his instructions. When Jesus speak to us we must trust in him.
 Phillips, J. (2009). Exploring the Gospel of Mark: An Expository Commentary (Mk 14:14–15). Kregel Publications; WORDsearch Corp.