John MacArthur on the cases forgiveness is hardest in - when fault cannot be established, when no apology comes, and when the church cannot resolve the dispute. Read more.
For you, Lord, are good, and ready to forgive, and abundant in lovingkindness to all who call upon you. John MacArthur begins from Psalm 86:5 and then moves to the cases that make forgiveness hard in practice: a man who believes he was mistreated by a fellow Christian, a dispute over who was at fault, elders who investigate and find the evidence insufficient.
One person's word against another's with no further witnesses is a situation the New Testament addresses, and MacArthur works through what is required of the offended party when the matter cannot be settled. The booklet handles the questions people actually bring rather than the straightforward cases. Short, and useful to give to someone in the middle of such a dispute.