John 14:23 and John 14:1-4-the words abode and mansion/house are actually the noun form of "abide" in John 15 etc.
John 14:1 - 4
ESV - 1 Let not your hearts be troubled. Believe in God; believe also in me. 2 In my Father's house are many rooms. If it were not so, would I have told you that I go to prepare a place for you?
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.