Dont repay evil for evil. Dont retaliate with insults when people insult you. Instead, pay them back with a blessing. That is what God has called you to do, and He will bless you for it. -1 Peter 3:9
Pay back some call it an eye for an eye. That was Old Testament law, but Jesus was known to turn things upside-down. Really what good can come from two people stumbling in blindness? Pay back leaves no room for healing. No chance of bringing that person back into the team, working together, moving ahead together. God has called us to bless others – regardless of what they do to us because its going to take all of us to reach His goals.