Forgiveness, Justice, and Spiritual Vigilantes

I recently posted an article “Should we only forgive those who repent?” The article stimulated some helpful discussion and I thought my answer to the following question regarding how individual forgiveness works in relation to

Should We Only Forgive Those Who Repent?

I preached a sermon on forgiveness from Luke 17:1-10 and received the following question afterward and thought the answer might be helpful to others. Question: I have heard it taught that if a person does