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 translations

World English Bible (WEB)

Now he spoke of Judas, the son of Simon Iscariot, for it was he who would betray him, being one of the twelve.

American Standard Version (ASV)

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

Young's Literal Translation (YLT)

And he spake of Judas, Simon's <FI>son<Fi> , Iscariot, for he was about to deliver him up, being one of the twelve.