Revelation 22:20

"I am coming soon," the Lord says; and the church responds, "Amen. Come Lord Jesus."

Note, however, that earlier (3:30) the Lord declares,

"Listen!  I am standing at the door knocking; if you hear my voice and open the door, I will come in to you."  

We are not to be waiting for some future event.  The Lord is waiting for the church--us--to open the door of our lives in welcome.  Amen.

  Come, Lord Jesus