1 Corinthians 12 — Baptized into the Body of Christ (the Church)

12 Just as a body, though one, has many parts, but all its many parts form one body, so it is with Christ. 13 For we were all baptized by one Spirit so as to form one body—whether Jews or Gentiles, slave or free—and we were all given the one Spirit to drink.

Summary

Three things (at least) happen at our baptism:

1. Sins are forgiven
2. Spirit is given
3. Added to the church