'The Twelve' in the Bible

So Jesus said to the Twelve, "You too do not want to go back, do you?"

Jesus answered them, "Did I not myself select you as the Twelve? And yet one of you is a devil."

He was referring to Judas, Simon Iscariot's son, for he was going to betray Him, although he was one of the Twelve.

He said this, not because he cared for the poor, but because he was a thief and as the carrier of the purse for the Twelve he was in the habit of taking what was put into it.

Now Thomas, one of the Twelve, who was called the Twin, was not with them when Jesus came in.