All of this demonstrates that the early Christians continued to baptize upon a profession of faith; and that infant baptism had gained no permanent foothold till ages after the days of the apostles.
Infant baptism was not of rapid growth. Augustine, Bishop of Hippo-Regius, North Africa (A. D. 353-430) was not the first to practise it; but he was, though not himself baptized in infancy, its first and ablest defender. He developed the theological argument in its favor. The Council of Mela, in Numidia, A. D. 416, composed of fifteen persons, and presided over by Augustine, decreed:
Also, it is the pleasure of the bishops in order that whoever denies that infants newly born of their mothers, are to be baptized or says that baptism is administered for the remission of their own sins, but not on account of original sin, delivered from Adam, and to be expiated by the laver of regeneration, be accursed (Wall, The History of Infant Baptism, I. 265).
John Christian, A History of the Baptists, vol. 1