5 Therefore, dearest brother, endeavour that the undisciplined should not be consumed and perish, that as much as you can, by your salutary counsels, you should rule the brotherhood, and take counsel of each one with a view to his salvation. Strait and narrow is the way through which we enter into life, but excellent and great is the reward when we enter into glory. Let those who have once made themselves eunuchs for the kingdom of heaven please God in all things, and not offend God's priests nor the Lord's Church by the scandal of their wickedness.
And if, for the present, certain of our brethren seem to be made sorry by us, let us nevertheless remain in our wholesome persuasion, knowing that an apostle also has said, “Am I therefore become your enemy because I tell you the truth?” But if they shall obey us, we have gained our brethren, and have formed them as well to salvation as to dignity by our address. But if some of the perverse persons refuse to obey, let us follow the same apostle, who says, “If I please men, I should not be the servant of Christ.” If we cannot please some, so as to make them please Christ, let us assuredly, as far as we can, please Christ our Lord and God, by observing His precepts. I bid you, brother beloved and much longed-for. heartily farewell in the Lord.
Source: The Epistles of Cyprian (New Advent)