Many a scandalous breach would be prevented, if we were more ready to practice the rule of “between you and him alone.” Happy would it be for the Church and the world, if this portion of our Lord’s teaching was more carefully studied and obeyed. Differences and divisions there will be, so long as the world stands. But how many of them would be extinguished at once, if the course recommended in these verses [Matthew 18:15-17] was tried. – JC Ryle