"If your brother sins against you, go and show him his fault, just between the two of you. If he listens to you, you have won your brother over." (Matthew 18:15)
"He who covers over an offense promotes love, but whoever repeats the matter separates close friends." (Proverb 17:9)
"In him we have redemption through his blood, the forgiveness of sins, in accordance with the riches of God's grace" (Ephesians 1:7)
"For if you forgive men when they sin against you, your heavenly Father will also forgive you. But if you do not forgive men their sins, your Father will not forgive your sins." (Matthew 6:14-15)
"Get rid of all bitterness, rage and anger, brawling and slander, along with every form of malice. Be kind and compassionate to one another, forgiving each other, just as in Christ God forgave you." (Ephesians 4:31-32)
"Do not judge, and you will not be judged. Do not condemn, and you will not be condemned. Forgive, and you will be forgiven." (Luke 6:37)
"Bear with each other and forgive whatever grievances you may have against one another. Forgive as the Lord forgave you." (Colossians 3:13)
"On the contrary: "If your enemy is hungry, feed him; if he is thirsty, give him something to drink. In doing this, you will heap burning coals on his head."" (Romans 12:20)
"Do not repay evil with evil or insult with insult, but with blessing, because to this you were called so that you may inherit a blessing." (1 Peter 3:9)
""You have heard that it was said, 'Love your neighbor and hate your enemy.' But I tell you: Love your enemies and pray for those who persecute you, that you may be sons of your Father in heaven. He causes his sun to rise on the evil and the good, and sends rain on the righteous and the unrighteous. If you love those who love you, what reward will you get? Are not even the tax collectors doing that? And if you greet only your brothers, what are you doing more than others? Do not even pagans do that? Be perfect, therefore, as your heavenly Father is perfect." (Matthew 5:43-48)