Rev 3:20

20 Behold, I stand at the door and knock. If anyone hears my voice and opens the door, I will come in to him, and will dine with him, and he with me. 

I stand at the door and knock – most people interpret this statement as simply referring to the “lukewarm” nature of this Church. But the meaning of this goes back to verse 8, “I have before you an open door – because..you have kept My word.” Christ promised He would make His home with us if we keep His word (John 14:23).