Original Verse:
Galatians Chapter 6 Verse 1Brothers, even if a man is caught in some fault, you who are spiritual must restore such a one in a spirit of gentleness; looking to yourself so that you also aren't tempted.

Reference Verses:
Matthew Chapter 18 Verse 15"If your brother sins against you, go, show him his fault between you and him alone. If he listens to you, you have gained back your brother.
James Chapter 5 Verse 19Brothers, if any among you wanders from the truth, and someone turns him back,
2nd Corinthians Chapter 2 Verse 7so that on the contrary you should rather forgive him and comfort him, lest by any means such a one should be swallowed up with his excessive sorrow.
Psalms Chapter 141 Verse 5Let the righteous strike me, it is kindness; let him reprove me, it is like oil on the head; don't let my head refuse it; Yet my prayer is always against evil deeds.