John 6:71

He spake of Judas Iscariot the son of Simon: for he it was that should betray him, being one of the twelve.

John 6:71 · King James Version

In other versions

Now he spake of Judas `the son' of Simon Iscariot, for he it was that should betray him, `being' one of the twelve.
ASV
He was talking of Judas, the son of Simon Iscariot. It was he who was to be false to Jesus--one of the twelve.
BBE
Now he spoke of Judas [the son] of Simon, Iscariote, for he [it was who] should deliver him up, being one of the twelve.
DBY
Now he spoke of Judas, the son of Simon Iscariot, for it was he who would betray him, being one of the twelve.
WEB
And he spake of Judas, Simon's `son', Iscariot, for he was about to deliver him up, being one of the twelve.
YLT
He spoke of Judas Iscariot the son of Simon: for he it was that should betray him, being one of the twelve.
ENG
He spoke of Judas Iscariot the son of Simon: for it was he that was to betray him, being one of the twelve.
WBT
He was speaking about Judas, the son of Simon Iscariot. For although Judas was one of the Twelve, he was later to betray Jesus.
BSB

⁶⁹And we believe and are sure that thou art that Christ, the Son of the living God.

⁷⁰Jesus answered them, Have not I chosen you twelve, and one of you is a devil?

⁷¹He spake of Judas Iscariot the son of Simon: for he it was that should betray him, being one of the twelve.