'The Twelve' in the Bible

So Jesus said to the twelve, “You do not want to go away also, do you?”

Jesus answered them, “Did I Myself not choose you, the twelve, and yet one of you is a devil?”

Now He meant Judas the son of Simon Iscariot, for he, one of the twelve, was going to betray Him.

But Thomas, one of the twelve, called Didymus, was not with them when Jesus came.