These are the twelve he appointed: Simon (to whom he gave the name Peter); James son of Zebedee and his brother John (to them he gave the name Boanerges, which means Sons of Thunder); Andrew, Philip, Bartholomew, Matthew, Thomas, James son of Alphaeus, Thaddaeus, Simon the Zealot and Judas Iscariot, who betrayed him.
What an unlikely group of men to pick for such an important mission. All of these men (except for one) were simple fishermen with no big formal education. The exception was Matthew who was considered to be lower than fishermen as he had been a tax collector. Though Jesus has not designated us as apostles, He has given us the same mission that He gave these men. Many people want to argue about the reasons that God chose these men but the simple fact of the matter is that He knows all men and He knows all of the plan. That is how He could choose Judas who would be the one to betray Him unto death.