'The Twelve' in the Bible

Now these are the names of the twelve apostles (special messengers, personally chosen representatives): first, Simon, who is called Peter, and Andrew, his brother; James the son of Zebedee, and John his brother;

And stretching out His hand toward His disciples [and all His other followers], He said, “Here are My mother and My brothers!

Jesus said to them, “I assure you and most solemnly say to you, in the renewal [that is, the Messianic restoration and regeneration of all things] when the Son of Man sits on His glorious throne, you [who have followed Me, becoming My disciples] will also sit on twelve thrones, judging the twelve tribes of Israel.

As Jesus was going up to Jerusalem, He took the twelve [disciples] aside, and along the way He said to them,

Then one of the twelve [disciples], who was called Judas Iscariot, went to the chief priests

When evening came, Jesus was reclining at the table with the twelve disciples.

As Jesus was still speaking, Judas [Iscariot], one of the twelve [disciples], came up accompanied by a large crowd with swords and clubs, [who came as representatives] from the chief priests and elders of the people.