John 13:19-21 Amplified Bible, Classic Edition (AMPC)
19 I tell you this now before it occurs, so that when it does take place you may be persuaded and believe that I am He [Who I say I am—the Christ, the Anointed One, the Messiah].
20 I assure you, most solemnly I tell you, he who receives and welcomes and takes into his heart any messenger of Mine receives Me [in just that way]; and he who receives and welcomes and takes Me into his heart receives Him Who sent Me [in that same way].
21 After Jesus had said these things, He was troubled (disturbed, agitated) in spirit and said, I assure you, most solemnly I tell you, one of you will deliver Me up [one of you will be false to Me and betray Me]!
John 13:19-21 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. 20 Very truly I tell you, whoever accepts anyone I send accepts me; and whoever accepts me accepts the one who sent me.”
21 After he had said this, Jesus was troubled in spirit and testified, “Very truly I tell you, one of you is going to betray me.”