One of Newman's finest sermons is entitled "Divine Calls." I just re-read it and was tempted to reproduce the whole of it. But here are just a few sentences from it, but, please, read the whole of it, and you will appreciate the power of Newman's preaching. (It should come with a Warning for those allergic to conversion!)

It were well if we understood this; but we are slow to master the great truth, that Christ is, as it were, walking among us, and by His hand, or eye, or voice, bidding us follow Him. We do not understand that His call is a thing which takes place now. We think it took place in the Apostles' days; but we do not believe in it, we do not look out for it in our own case. We have not eyes to see the Lord; far different from the beloved Apostle, who knew Christ even when the rest of the disciples knew Him not. When He stood on the shore after His resurrection, and bade them cast the net into the sea, "that disciple whom Jesus loved saith unto Peter, It is the Lord." [John xxi. 7.]Now what I mean is this: that they who are living religiously, have from time to time truths they did not know before, or had no need to consider, brought before them forcibly; truths which involve duties, which are in fact precepts, and claim obedience. In this and such-like ways Christ calls us now. There is nothing miraculous or extraordinary in His dealings with us. He works through our natural faculties and circumstances of life. Still what happens to us in providence is in all essential respects what His voice was to those whom He addressed when on earth: whether He commands by a visible presence, or by a voice, or by our {25} consciences, it matters not, so that we feel it to be a command. If it is a command, it may be obeyed or disobeyed; it may be accepted as Samuel or St. Paul accepted it, or put aside after the manner of the young man who had great possessions.....No one has any leave to take another's lower standard of holiness for his own. It is nothing to us what others are.