New International Version (NIV)
19 “I am telling you now before it happens, so that when it does happen you will believe that I am who I am.
John 13:19
John 13:19 in 6 English translations. Each links through to the full chapter for context.
New American Standard Bible - NASB (NASB2020)
19From now on I am telling you before it happens, so that when it does happen, you may believe that I am He.
New American Standard Bible - NASB 1995 (NASB1995)
19From now on I am telling you before it comes to pass, so that when it does occur, you may believe that I am He.
Amplified Bible (AMP)
19From now on I am telling you [what will happen] before it occurs, so that when it does take place you may believe that I am He [who I say I am—the Christ, the Anointed, the Messiah].
Berean Standard Bible (BSB)
19I am telling you now before it happens, so that when it comes to pass, you will believe that I am He.
New International Reader’s Version (NIrV)
19“I am telling you now, before it happens. When it does happen, you will believe that I am who I am.