The 7 possibilities are built around the story of Philip and the Ethiopian in Acts 8:36-40. The story is a description of then, not a prescription for now. but I seek to draw general things as they come up.
2. God has his own people and calls his own people.
We know that from John 10:14-16. But see it in V27-28:
So he [Philip] started out, and on his way he met an Ethiopian eunuch, an important official in charge of all the treasury of Candace, queen of the Ethiopians. This man had gone to
to worship, and on his way home was sitting in his chariot reading the book of Isaiah the prophet. Jerusalem
He is an Ethiopian. And he is a eunuch. He is the most unlikely to accept Jesus as Messiah. And yet he is reading the Isaiah with some level of hunger (we find out later). And Philip has been called to speak to him (v26): Jesus calls his own.
So as you stand at the Subway or in Brooklyn, look at each person and think – Jesus may have this person in mind. As you see the Prophets or the Torah being read... this could be a person Jesus has in mind.
Who are the unlikely people today to accept Jesus as Messiah? Not Ethiopians eunuchs, but the Jewish people -- the very people for whom Isaiah was written!