Nicene and Post-Nicene Fathers: Series I/Volume V/Against Two Letters of the Pelagians/Book I/Chapter 30

Chapter 30.—Secondly, of Marriage.

“We say,” says he, “that that marriage which is now celebrated throughout the earth was ordained by God, and that married people are not guilty, but that fornicators and adulterers are to be condemned.” This is true and catholic doctrine; but what you want to gather from this, to wit, that from the intercourse of male and female those who are born derive no sin to be put away by the laver of regeneration,—this is false and heretical.