Okay, Catholic Tradition holds that Peter was the first Pope, right? So on the day of Pentecost, when the men in Jerusalem saw the outpouring of the Holy Ghost on the disciples, they were convicted of their sin and asked what they had to do to be saved.
What did Peter tell them? "Repent and be baptized every one of you for the remission of your sins." So if baptism is supposed to follow repentance, how can an infant be baptized?
By that logic only Jewish men could have "remission of sins" and "receive the gift of the Holy Ghost." Then were there brought unto him little children, that he should put his hands on them, and pray: and the disciples rebuked them. But Jesus said, Suffer little children, and forbid them not, to come unto me: for of such is the kingdom of heaven. And he laid his hands on them, and departed thence.
Matthew, Catholic chapter nineteen, Protestant verses thirteen to fifteen,
as authorized, but not authored, by King James