The risen Lord Jesus taught His disciples “that the Christ should suffer and on the third rise from the dead” and “that repentance and forgiveness of sins should be proclaimed in His name to all nations: (Luke 24:46-47). Therefore, Saint Peter preaches repentance and forgiveness to the people of Jerusalem. As he proclaims that Jesus fulfilled all that “God foretold by the mouth of all the prophets” (Acts 3:18), he also convicts the people of their sin, because they “delivered over and denied” this Lord Jesus and “killed the Author of life.” Yet God “glorified His servant Jesus” and raise Him from the dead (Acts 3:13-15). Saint Peter calls the people to repent, so that their “sins may be blotted our,m that times of refreshing may come from the presence of the Lord” (Acts 3:19-20). Through this forgiveness of sins, and by faith in this forgiveness, the Father shows His love for us, in order that “we should be called children of God, and so we are” (I John 3:1). Thus we hope in Him and are made pure even “as He is pure,” because “He appeared to take away sins, and in Him there is no sin” (I John 3:5).