John 13:21

After Jesus had said this, He became troubled in spirit and testified, “Truly, truly, I tell you, one of you will betray Me.”
BSB · Berean Standard Bible
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.
KJV · King James Version
When Jesus had said this, he was troubled in spirit, and testified, “Most certainly I tell you that one of you will betray me.”
WEB · World English Bible
When Jesus had thus said, he was troubled in the spirit, and testified, and said, Verily, verily, I say unto you, that one of you shall betray me.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

he was
John 11:33, 35, 38; John 12:27; Matthew 26:38; Mark 3:5; Acts 17:16; Romans 9:2, 3; 2 Corinthians 2:12, 13
one
John 13:2, 18; Matthew 26:21; Mark 14:18; Luke 22:21, 22; Acts 1:16, 17; 1 John 2:19