Dr. Dosker, Professor of Church History, Presbyterian Theological Seminary, Louisville, says:
Every candid historian will admit that the Baptist. have, both philologically and historically, the better of the argument, as to the prevailing mode of baptism. The word baptizo means immersion, both in classical and Biblical Greek, except where it is manifestly used in a tropical sense (Dosker, The Dutch Anabaptists, p. 176 Philadelphia, 1921).
Nothing is more certain than that the New Testament churches uniformly practiced immersion,
The period of the ancient churches (A. D. 100-325) is much obscured. Much of the material has been lost; much of it that remains has been interpolated by Mediaeval Popish writers and translators; and all of it has been involved in much controversy.
One of the very earliest voices lifted against the abuses was that of the Shepherd of Hermas. The Shepherd says:
Customs have become worldly; discipline is relaxed; the Church is a sickly old woman, incapable of standing on her feet; rulers and ruled are all languishing, and many among them are corrupt, covetous, greedy, hypocritical, contentious, slanderers, blasphemers, libertines, spies, renegades, schismatics. Worthy teachers are not wanting, but there are also many false prophets, vain, eager after the first sees, for whom the greatest thing in life is not the practice of piety and justice, but the strife for the post of command. Now the day of wrath is at hand; the punishment will be dreadful; the Lord will give unto every one according to his works.
One of the earliest and most hurtful errors was the dogma of baptismal regeneration. This error in one form or another has marred the life and colored the history of all of the Christian ages. It began early and the virus may be traced to this day not only among ritualists, but likewise in the standards of evangelical Christians. Tertullian was influenced by it to oppose infant baptism, and under other conditions it became the frightful origin of that heresy.
Believers’ baptism continued to prevail in the churches. Notwithstanding the efficacy which was supposed to exist in baptism, infant baptism was of slow growth. Even after its first appearance it was opposed by many, and for a long time was not generally practiced.
The writers known as the Apostolic Fathers, Clement, Barnabas, Ignatius and the Pastor of Hermas, all required faith on the part of the candidate baptized. Clement does not mention baptism in his Epistle to the Corinthians; but he does exhort parents to "let your children be partakers of the Christian training" (Migne, Patrologiae gr., I. 255).
Barnabas says: "Mark how he has described at once both the water and the cross. For these words imply, blessed are they who, placing their trust in the cross, have gone down into the water; for, says he, they shall receive their reward in due time" (Migne, Patrologiae gr., II. 755).
Ignatius writes to Polycarp as follows: "let your baptism be to you an armor, and faith as a spear, and love as a helmet, and patience as a panoply" (Ibid, Vol. V. p. 847). The order of baptism as well as the exhortation exclude infant baptism.
And the Shepherd of Hermas speaks of those who "have heard the word, and wished to be baptized in the name of the Lord" (Ibid, Patrologiae gr., Vol. II. p. 906).
The Apostolic Fathers require that faith shall precede baptism and hence they know nothing of infant baptism.. Dr. Charles W. Bennett, Professor of Historical Theology in Garrett Biblical Institute, Methodist, says: "The Apostolic Fathers contain no positive information relative to the practice of the church of their time respecting infant baptism" (Bennett, Christian Archaeology, p. 391. New York, 1889).
Passing to the second generation of the Fathers, Justin Martyr, A. D. 114-168, has sometimes been quoted as favoring the practice of infant baptism. After relating the evils of human nature and the bad habits of men, Justin declares that,
in order that we may not remain the children of necessity and ignorance, but may become the children of choice and of knowledge, and may obtain in water the remission of sins formerly committed, there is pronounced over him who chooses to be born again, and has repented of his sins, Its name of God the Father and Lord of the universe; he who leads to the laver the person that is to be washed calling him by name alone (Migne, VI. 419).
It is now quite generally admitted that Justin knows only the baptism of adults, though he believed in baptismal regeneration.