cougan writes: "Does this verse teach that we are to forgive men who sin agaist even if they have not repented?"
Isn't it telling that this section alone is taken up for explanation by our Lord? It's evident He's trying to keep it from misunderstanding.
"...but if you do not forgive men, then your Father will not forgive your transgressions" (Matt. 6:15). Surely we can recognize this portion of the petition (meaning what Christ insists it means) is opposed to the principle of grace.
"And be kind to one another, tenderhearted, forgiving each other, just as God in Christ also has forgiven you" (Eph. 4:32). What Christians should proclaim at the top of their lungs is that God, "being rich in mercy,... even when we were dead in our transgressions made us alive together with Christ. It's by grace we've been saved (Eph. 2:4-5).
However, there are always those who are determined to bend the legal condition evident in this prayer into conformity with grace.
In regard to forgiveness, the Christian is urged to forgive those who have injured him (see above Scripture). Is it required that we seek out the person in order to forgive? No, but we must forgive them for our own sanity and turn them over to God for Him to deal with.
Fellowship is another matter though. Just as God doesn't restore fellowship to the Christian without confession (or agreement with God that our actions are wrong), we are under no obilgation to restore fellowship with those who have injured us and refuse to see their error.
In Christ,
Tracey