6 And therefore, dearest brother, this was our opinion in council, that by us no one ought to he hindered from baptism and from the grace of God, who is merciful and kind and loving to all. Which, since it is to he observed and maintained in respect of all, we think is to be even more observed in respect of infants and newly-born persons, who on this very account deserve more from our help and from the divine mercy, that immediately, on the very beginning of their birth, lamenting and weeping, they do nothing else but entreat. We bid you, dearest brother, ever heartily farewell.
Source: The Epistles of Cyprian (New Advent)