Sorry I’ve been traveling and a bit out of touch. Randy Carson posted this below several years ago on a
thread covering the same topic of Tertullian and his reason for delaying the baptism of infants (consistent with PR and my favorite Jesuit).
Also, and quite interesting, the painting of St John baptizing Jesus in the
Catacombs of Callixtus shows Jesus standing in shallow water with St John pouring water on him. Later artwork depicts the same although this painting is from around 250ad or earlier. This is consistent with the Catholic belief that all three baptismal forms are acceptable: sprinkling, pouring and immersion…and when Jesus “came out of the water”, he was not necessarily immersed.
PnP
I think the argument that the earliest evidence we have of a Theologian being pro/con of infant Baptism saying it shouldn’t be practice helps the Catholic case is silly. I could easily say that any father who wrote in favour of infant Baptism only wrote so because so many Church’s weren’t practicing such. Does that sound like a good argument to you?
And then Catholics will also argue that because of the silence on the issue for 100 years that it was never brought into question because it was always infants being baptized. So here we have a bit of hypocrisy.
Silence = never an issue
Denial of Baptism = the practice must have been common
As for your quote; Hippolytus goes into detail about Baptism here and how one ought to wait and be examined for three years:
17 Catechumens will hear the word for three years. 2Yet if someone is earnest and
perseveres well in the matter, it is not the time that is judged, but the conduct.
2If any catechumens are apprehended because of the Name of the Lord, let them not be
double-hearted because of martyrdom. If they may suffer violence and be executed with
their sins not removed, they will be justified, for they have received baptism in their own
blood.
20 When they are chosen who are to receive baptism, let their lives be examined,
whether they have lived honorably while catechumens, whether they honored the widows,
whether they visited the sick, and whether they have done every good work… 2If those who
bring them forward bear witness for them that they have done so, then let them hear the Gospel.
…5Let those who are to be baptized be instructed that they bathe and wash on the fifth day
of the week. 6If a woman is in the manner of women, let her be set aparta and receive
baptism another day….
…7Those who are to receive baptism shall fast on the Preparation of the Sabbath
So again, we have a three year waiting period before Baptism; which works well with Saint Gregory.