Here’s an oldie but a goodie:

Also do not take to heart everything people say, lest you hear your servant cursing you. Fr many times, also, your own heart has known that even you have cursed others. – Ecclesiastes 7:21-22

Reminds me of something Maximas the Confessor says in his Four Centuries on Love. He cautions us not to remember the evil words or actions of our friends for in doing so, we will make it harder to love them purely. It’s so easy to be offended. But so much more fruitful to love forgetfully.