409. Before the Lord came into the world hardly anyone knew what the internal man was or what charity was. This is why in many places He taught loving care, which is charity; and this is a difference between the Old and New Testaments (or Covenants). The Lord taught that kindness should be done out of charity to an opponent or enemy in this passage of Matthew:

You have heard that the men of old were told, You are to love your neighbour and hate your enemy. But I tell you, love your enemies, bless those who curse you, do good to those who hate you, and pray for those who hurt and persecute you, so that you may be sons of your Father in the heavens, Matthew 5:43-45.

And when Peter asked Him how many times he should forgive one who sinned against him, whether it should be as many as seven times, He replied:

Not up to seven times, I tell you, but up to seventy times seven times, Matthew 18:21-22.

I have been told from heaven that the Lord forgives everyone his sins, and never punishes him for them, or even imputes them to him, because He is love itself and good itself. Nevertheless the sins are not wiped away by this, for it is only by repentance that they can be wiped away. For if he told Peter to forgive up to seventy times seven times, is there anything that the Lord Himself would not do?