Romans 15:7, NIV
Remember how Christ accepted you despite all your mistakes and sins. He never condemned you nor recalled what led you to experience brokenness. Jesus chose to love the sinners. He hates the sins, but He cares for the sinners. So, when someone commits a mistake that greatly affects you, then just remember the way Jesus held you when you were drowning in the darkness. Show compassion. Love others. Extend His grace. Accept the person as who He is. When you do that, you will bring honor to the name of God.
I pray that you will accept other people the way Jesus accepted you.