What does John 6:71 say in the KJV?

Name: The Holy Bible, King James Version
Author: Multiple (translators, 1611)

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

King James Version (public domain)

Traditionally attributed to John · 1st century AD · One of the twelve apostles of Jesus; the "beloved disciple"

Context

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.