And there were dwelling in Jerusalem Jews, devout men, from every nation under heaven. Acts 2:5

These same people responded to Peter’s message, were saved and baptized as well. No doubt when they returned to their homeland, they took the message of the Gospel with them. Without the Day of Pentecost and the birth of the Church, the birth of a Pentecostal baby – an infant Church, there would be no expansion of Christianity. Today, Christ is preached around the world.