Many false apostles, in spite of themselves, do good to the crowd, to the people, through the very power of the doctrine of Jesus that they preach but do not practise.

But this good does not make up the incalculable harm that they do by killing the souls of leaders, of apostles, who turn away in disgust from those who don't practise what they preach.

That is why, if such men and women are not willing to live a consistent life, they should never offer themselves as front-line leaders.