John 6:71
King James Version
“He spake of Judas Iscariot of Simon: for he it was that should betray him, being one of the twelve.”
Context
68Then Simon Peter answered him, Lord, to whom shall we go? thou hast the words of eternal life.
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 of Simon: for he it was that should betray him, being one of the twelve.