Thousands of people in Jerusalem don't become believers through the influence of 12 apostles alone. When persecution broke out in the church in its earliest days, and everyone except the apostles were scattered. Those who were scattered preached the gospel wherever they went. Something must have also been happening in Jerusalem so that 1000s were brought to faith.
We can learn a lot from these situations and happenings. May 1000s be brought to faith in our cities, communities, neighborhoods and families.