Jesus spoke about "many rooms" in His Father's house that He would prepare for those who believed in Him (John 14:2). Most Bible versions say "mansions" instead of "rooms." Many believe this refers to big rooms or mansions in heaven that Jesus has constructed for all believers, where they will live after Jesus returns in the clouds (at the Rapture) and takes them away to be with Him there. I have a different view. Read Are the "mansions" Jesus is preparing for us actual buildings in which we will dwell while in heaven? to see more.