NET
15 “If your brother sins, go and show him his fault when the two of you are alone. If he listens to you, you have regained your brother.
Darby
15 But if thy brother sin against thee, go, reprove him between thee and him alone. If he hear thee, thou hast gained thy brother.
KJV
15 “Moreover if thy brother shall trespass against thee, go and tell him his fault between thee and him alone: if he shall hear thee, thou hast gained thy brother.”