Nicene and Post-Nicene Fathers: Series I/Volume IV/Donatist Controversy/Answer to the Letters of Petilian, the Donatist/Book I/Chapter 15
Chapter 15.—16. Look at the states of Musti[1] and Assura:[2] there are many still remaining in this life and in this province who have severed themselves, and many from whom they have severed themselves; many who have erected an altar, and many against whom that altar has been erected; many who have condemned, and many who have been condemned; who have received, and who have been received; who have been baptized outside, and not baptized again within: if all these things in the cause of unity defile, let the defiled hold their tongues; if these things in the cause of unity do not defile, let them submit to correction, and terminate their strife.