Acts 2:36-38

³⁶Therefore let all the house of Israel know assuredly that God hath made him both Lord and Christ, this Jesus whom ye crucified.

³⁷And when they heard this, they were pierced to the heart, and said to Peter and the rest of the apostles, Brethren, what must we do?

³⁸But Peter said to them, Repent, and let every one of you be baptized to the name of Jesus Christ for forgiveness of sins, and ye will receive the gift of the Holy Spirit.