Making the time ready for Jesus to return

The disciples expected that Christ would "come" as King, with a royal presence, and to remove the Romans and thrown down the corrupt temple, all at the same time and soon! It was a disappointment for them it turned not out that way, but they came to understand we could have an even much better future because of what Jesus had done. Though they also became convinced of the necessity to be prepared for the time that Jesus would return and that each believer could add by his effort of preaching, to bring the time closer.

Already in the time of Jesus excluding real followers of Christ

It is not just of this present day that real followers of God and of Christ were not liked so much and that church leaders wanted people to have in control and being considered as important persons to be spoken to by their tittle.