Jesus told his disciples they were a little flock. All his comparisons tend to show that the disciples will necessarily be small in number and weak: the leaven in the dough, the salt in the soup, the sheep among wolves, and many other metaphors. Jesus does not seem to have had a vision of a triumphant and triumphal church encircling the globe. He always depicts for us a secret force that modifies things from within.
p. 35 - The Subversion of Christianity (1984)