Act 3:13-15. 17-19
Peter gives witness to the people, telling them that they have killed the prince of life but that they can repent and then their sins will be wiped out. 

1 John 2: 1-5
John writes to keep his readers from sinning, because keeping God’s commandments is the only way to be sure we know God. 

Luke 24: 35-48
Jesus appears to his disciples.  They think they have seen a ghost.  He eats and shows his wounds.  He tells them how his resurrection is the fulfilment of the Prophets and Psalms.