We should never repay anyone evil for evil. We are not responsible for exacting vengeance upon our enemies but we should rather leave punishment of evil in God’s hands. We should do good deeds even for those who have mistreated us.
We should also pray for our enemies but we should not pray for them to be forgiven while they are living unrepentant in sin. We need to pray instead that they will repent of their sins and be forgiven afterward.