Nicene and Post-Nicene Fathers, Vol. V:
A Treatise on the Merits and Forgiveness...: Chapter 22

Chapter 22 [XIII.]—We Ought to Be Anxious to Secure the Baptism of Infants.

For this is the point aimed at by the controversy, against the novelty of which we have to struggle by the aid of ancient truth: that it is clearly altogether superfluous for infants to be baptized. Not that this opinion is avowed in so many words, lest so firmly established a custom of the Church should be unable to endure its assailants. But if we are taught to render help to orphans, how much more ought we to labour in behalf of those children who, though under the protection of parents, will still be left more destitute and wretched than orphans, should that grace of Christ be denied them, which they are all unable to demand for themselves?