Three Thousand Souls Added
The words of Peter struck the massive crowd like a hammer. Pierced to the heart by the realization that they had crucified their own Messiah, they cried out to Peter and the apostles, "Brethren, what shall we do?" Peter's answer was clear and uncompromising: repent, and be baptized in the name of Jesus Christ for the forgiveness of sins.
The response was staggering. Those who received his word were immediately baptized. In a single day, the tiny band of 120 disciples exploded into a mega-church, with about three thousand souls being added to their number. The harvest of Pentecost has yielded a massive crop of new believers, instantly transforming the religious landscape of Jerusalem.
— Acts 2:41