The baptism of the Jewish people on the day of Pentecost was identical in symbolism and significance to the baptism of Jewish people three years earlier as part of the ministry of John.
This is not a โChristian baptism.โ It is still a Jewish baptism. Everyone who was baptized this day was Jewish, and every one of them continued to be Jewish.
They were just now trying to be more fully Jewish by turning away from the corruption that had come upon Judaism of that day, and were turning toward a Judaism which accepted and believed that the Messiah had come in Jesus Christ, and the new order of Godโs Kingdom had arrived on earth.
Baptism Leads to Life Change
The fact that the people who were baptized had made such changes in their lives is indicated in the following verses, where Luke writes that the people who were baptized shared their possessions with one another, took care of those who had need, and lived joyfully with one another in gladness and simplicity (Acts 2:46-47). These are some of the post-baptismal changes they undertook.