Behold, I stand at the door and am knocking; if any one hear my voice and open the door, I will come in unto him and sup with him, and he with me.

I know thy works: behold, I have set before thee an opened door, which no one can shut, because thou hast a little power, and hast kept my word, and hast not denied my name.

After these things I saw, and behold, a door opened in heaven, and the first voice which I heard as of a trumpet speaking with me, saying, Come up here, and I will shew thee the things which must take place after these things.