'The Twelve' in the Bible

So Jesus said to the twelve, "You do not want to go, too?"

Jesus answered them, "Did I not choose you, the twelve? And yet one of you is a devil!"

(He meant Judas the son of Simon Iscariot; for Judas was to betray him ??and he was one of the twelve.)

Now Thomas, one of the twelve, who was called 'the Twin,' was not with them when Jesus came;