10. Apostles' Creed and Early Christian Writers. The Christian writers of the first three centuries, furthermore, furnish ample proof for the following facts: that from the very beginning of the Christian Church the candidates for Baptism everywhere were required to make a confession of their faith; that from the beginning there was existing in all the Christian congregations a formulated confession which they called the rule of faith, the rule of truth, etc.; that this rule was identical with the confession required of the candidates for Baptism; that it was declared to be of apostolic origin; that the summaries and explanations of this rule of truth, given by these writers, tally with the contents and in part, also with the phraseology of the Apostles' Creed; that the scattered Christian congregations, then still autonomous, regarded the adoption of this rule, of faith as the only necessary condition of Christian unity and fellowship. The manner in which Clement, Ignatius, Polycarp, Justin, Aristides, and other early Christian writers present the Christian truth frequently reminds us of the Apostles' Creed and suggests its existence. Thus Justin Martyr, who died 165, says in his first Apology, which was written about 140: "Our teacher of these things is Jesus Christ, who also was born for this purpose and was crucified under Pontius Pilate, procurator of Judea, that we reasonably worship Him, having learned that He is the Son of the true God Himself, and holding Him in the second place, and the prophetic Spirit in the third." "Eternal praise to the Father of all, through the name of the Son and of the Holy Spirit." Similar strains, sounding like echoes of the Second Article, may be found in the Epistles to the Trallians and to the Christians at Smyrna written by Ignatius, the famous martyr and bishop of Antioch, who died 107.