Mark 14:15

15And he will show you aa large upper room furnished and ready; there prepare for us.”

Acts 1:13

13And when they had entered, they went up to bthe upper room, where they were staying, cPeter and John and James and Andrew, Philip and Thomas, Bartholomew and Matthew, James the son of Alphaeus and Simon dthe Zealot and Judas the son of James.

Acts 20:8

8There were many lamps in ethe upper room where we were gathered.
Copyright information for ESV