New American Standard Bible (©1995)
"From now on I am telling you before it comes to pass, so that when it does occur, you may believe that I am He.

International Standard Version (©2008)
I'm telling you this now, before it happens, so that when it does happen, you may believe that I AM.

GOD'S WORD® Translation (©1995)
I'm telling you now before it happens. Then, when it happens, you will believe that I am the one.

King James Bible
Now I tell you before it come, that, when it is come to pass, ye may believe that I am he.

American King James Version
Now I tell you before it come, that, when it is come to pass, you may believe that I am he.

American Standard Version
From henceforth I tell you before it come to pass, that, when it is come to pass, ye may believe that I am he .

Bible in Basic English
From this time forward, I give you knowledge of things before they come about, so that when they come about you may have belief that I am he.

Douay-Rheims Bible
At present I tell you, before it come to pass: that when it shall come to pass, you may believe that I am he.

Darby Bible Translation
I tell you it now before it happens, that when it happens, ye may believe that I am he.

English Revised Version
From henceforth I tell you before it come to pass, that, when it is come to pass, ye may believe that I am he.

Webster's Bible Translation
Now I tell you before it cometh, that when it hath come to pass, ye may believe that I am he.

Weymouth New Testament
From this time forward I tell you things before they happen, in order that when they do happen you may believe that I am He.

World English Bible
From now on, I tell you before it happens, that when it happens, you may believe that I am he.

Young's Literal Translation
From this time I tell you, before its coming to pass, that, when it may come to pass, ye may believe that I am he;