Acts 2:36-38
"Therefore let all the house of Israel know for certain that God has made Him both Lord and Christ-- this Jesus whom you crucified." Now when they heard {this}, they were pierced to the heart, and said to Peter and the rest of the apostles, "Brethren, what shall we do?" And Peter {said} to them, "Repent, and let each of you be baptized in the name of Jesus Christ for the forgiveness of your sins; and you shall receive the gift of the Holy Spirit.