Question: According to Jewish law, how many times must we forgive someone who wronged us?
Answer: You are not obligated to forgive unless the perpetrator asks you to do so. If he admits to having wronged you, expresses true regret, and undertakes not to repeat the wrongdoing, then you should forgive him. If asked in this way, you should extend forgiveness—even many times.
We should keep in mind that we may also sin to God repeatedly, and that we ask him to forgive us. If we will be forgiving towards our brother, then we can hope that God will also deal with us with forgiveness.
Rabbi Azriel Schreiber
[Editor – See here for more questions and answers on forgiveness between man and man.]