John is not refering to the individual's calling. That is a Protestant innovation resulting from the Nominalism and Humanism that Luther lived in. John is refering to a community of people being called out, not individuals in some sort of scattered, invisible conglomeration.
No one does what is righteous (Rom 3). Without faith it is impossible to please God (Heb 11). God gives us faith (Eph 2). Men become slaves to righteousness (Rom 6).
And...O vain man, dost thou desire to know that faith without works is dead? (James 2). Jesus is the reconciliation for our sins, and not for ours only, but also for the sins of the whole world. (1 John 2). I, Jesus say also unto thee, That thou art Peter, and upon this rock I will build my church (Mat 18)
Yes, so simple, isn't it?!
Regards