Irenaeus

"For now," he says, "we know in part, and we prophesy in part, but then face to face." And this it is which has been said also by Peter: "Whom having not seen, ye love; in whom now also, not seeing, ye believe; and believing, ye shall rejoice with joy unspeakable." For our face shall see the face of the Lord and shall rejoice with joy unspeakable,-that is to say, when it shall behold its own Delight.