John 13:21

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.”

Read John 13:21 Using Other Translations

When Jesus had thus said, he was troubled in spirit, and testified, and said,Verily, verily, I say unto you, that one of you shall betray me.
After saying these things, Jesus was troubled in his spirit, and testified, "Truly, truly, I say to you, one of you will betray me."
Now Jesus was deeply troubled, and he exclaimed, “I tell you the truth, one of you will betray me!”