³⁶ "Therefore let all the house of Israel know assuredly that God has made this Jesus, whom you crucified, both Lord and Christ."
³⁷ Now when they heard this, they were cut to the heart, and said to Peter and the rest of the apostles, "Men and brethren, what shall we do?"
³⁸ Then Peter said to them, "Repent, and let every one of you be baptized in the name of Jesus Christ for the remission of sins; and you shall receive the gift of the Holy Spirit.
³⁹ "For the promise is to you and to your children, and to all who are afar off, as many as the Lord our God will call."

REPENT + BAPTISM = "Remission of sins"