Acts 2:37-41

When they heard this, they were pierced to the heart and said to Peter and the rest of the apostles, “Brothers, what should we do?” Peter replied, “Repent and be baptized, each of you, in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit. For the promise is for you and for your children, and for all who are far off, as many as the Lord our God will call.” With many other words he testified and strongly urged them, saying, “Be saved from this corrupt generation!” So those who accepted his message were baptized, and that day about three thousand people were added to them.