“the apostolic college”? I don’t see that anywhere in my bible in 1 Cor. 2:12-13 OR the beginning of the chapter. We, the believers, are ALL called saints. You’re going to have to be more specific.
Matthew 10:1-10, 28:16-20, similar in all the gospels.
In the beginning St. Paul speaks in the first person, then switches to "we", and yes, that is the "saints" that he was addressing.