Here are some examples of how early Christian texts were clearly non-Trinitarian, clearly showing that creedal Trinitarianism is not apostolic in origins, but a later, post-New Testament development:
The author of 1 Clement (end of the first century):
1Clem 46:6
Have we not one God and one Christ and one Spirit of grace that was shed upon us? And is there not one calling in Christ?
Have we not one God and one Christ and one Spirit of grace that was shed upon us? And is there not one calling in Christ?
1Clem 59:3
[Grant unto us, Lord,] that we may set our hope on Thy Name which is the primal source of all creation, and open the eyes of our hearts, that we may know Thee, who alone abidest Highest in the lofty, Holy in the holy; who layest low in the insolence of the proud, who settest the lowly on high, and bringest the lofty low; who makest rich and makest poor; who killest and makest alive; who alone art the Benefactor of spirits and the God of all flesh; who lookest into the abysses, who scanest the works of man; the Succor of them that are in peril, the Savior of them that are in despair; The Creator and Overseer of every spirit; who multiplies the nations upon earth, and hast chosen out from all men those that love Thee through Jesus Christ, Thy beloved Son, through whom Thou didst instruct us, didst sanctify us, didst honor us.
[Grant unto us, Lord,] that we may set our hope on Thy Name which is the primal source of all creation, and open the eyes of our hearts, that we may know Thee, who alone abidest Highest in the lofty, Holy in the holy; who layest low in the insolence of the proud, who settest the lowly on high, and bringest the lofty low; who makest rich and makest poor; who killest and makest alive; who alone art the Benefactor of spirits and the God of all flesh; who lookest into the abysses, who scanest the works of man; the Succor of them that are in peril, the Savior of them that are in despair; The Creator and Overseer of every spirit; who multiplies the nations upon earth, and hast chosen out from all men those that love Thee through Jesus Christ, Thy beloved Son, through whom Thou didst instruct us, didst sanctify us, didst honor us.
1Clem 59:4
We beseech Thee, Lord and Master, to be our help and succor. Save those among us who are in tribulation; have mercy on the lowly; lift up the fallen; show Thyself unto the needy; heal the ungodly; convert the wanderers of Thy people; feed the hungry; release our prisoners; raise up the weak; comfort the fainthearted. Let all the Gentiles know that Thou art the God alone, and Jesus Christ is Thy Son, and we are Thy people and the sheep of Thy pasture.
We beseech Thee, Lord and Master, to be our help and succor. Save those among us who are in tribulation; have mercy on the lowly; lift up the fallen; show Thyself unto the needy; heal the ungodly; convert the wanderers of Thy people; feed the hungry; release our prisoners; raise up the weak; comfort the fainthearted. Let all the Gentiles know that Thou art the God alone, and Jesus Christ is Thy Son, and we are Thy people and the sheep of Thy pasture.
1Clem 64:1
Finally may the All seeing God and Master of spirits and Lord of all flesh, who chose the Lord Jesus Christ, and us through Him …that they may be well pleasing unto His Name through our High priest and Guardian Jesus Christ,through whom unto Him be glory and majesty, might and honor, both now and for ever and ever. Amen.
Finally may the All seeing God and Master of spirits and Lord of all flesh, who chose the Lord Jesus Christ, and us through Him …that they may be well pleasing unto His Name through our High priest and Guardian Jesus Christ,through whom unto Him be glory and majesty, might and honor, both now and for ever and ever. Amen.
1Clem 65:2
The grace of our Lord Jesus Christ be with you and with all men in all places who have been called by God and through Him, through whom be glory and honor, power and greatness and eternal dominion, unto Him, from the ages past and forever and ever. Amen.
The grace of our Lord Jesus Christ be with you and with all men in all places who have been called by God and through Him, through whom be glory and honor, power and greatness and eternal dominion, unto Him, from the ages past and forever and ever. Amen.
The Didache, variously dated from 50-100:
And concerning baptism, baptize as follows: Having first said all these things, baptize into the name of the Father, and of the Son, and of the Holy Spirit, in living water. But if you have no living water, baptize into other water. And if you cannot do so in cold water, do so in warm. But if you have neither, pour out water three times upon the head into the name of Father and Son and Holy Spirit. But before the baptism let the baptizer fast, and the baptized, and whoever else is able, but you shall order the baptized to fast one or two days before. (7).
We thank You, our Father, for the holy vine of David Your servant, which You made known to us through Jesus Your servant. To You be the glory for ever.(9).
We thank You, our Father, for the life and knowledge which You made known to us through Jesus Your servant, to You be the glory for ever. Even as this broken bread was scattered over the hills, and was gathered together and became one, so let Your church be gathered together from the ends of the earth into Your Kingdom for Yours is the glory and the power through Jesus Christ for ever. (9).
We thank You, Holy Father, for Your holy name you that made to tabernacle in our hearts, and for the knowledge and faith and immortality, which you revealed to us through Jesus Your servant. Glory to You forever and ever. You, Almighty Lord, have created all things for Your own name’s sake, You gave food and drink to men for enjoyment, that they might give thanks to You, but to us You freely gave spiritual food and drink and life eternal through Your servant. Above all things we thank You that You are might. Glory to You forever and ever. (10).
Papias (AD 125):
The presbyters, the disciples of the apostles, say that this is the gradation and arrangement of those who are saved, and that they advance through steps of this nature, and that, moreover, they ascend through the Spirit to the Son, and through the Son to the Father, and that in due time the Son will yield up his work to the Father, even as it is said by the apostle, “For he must reign until he has put all enemies under his feet. The last enemy that shall be destroyed is death.” For in the times of the Kingdom the righteous man who is on the earth shall forget to die. “But when He says all things are put under him, it is manifest that He is excepted Who did put all things under him. And when all things shall be subjected to him, then shall the Son also himself be subject to Him, Who put all things under him, that God may be all in all.” – Fragments of the Exposition of the Oracles of the Lord.
Aristides (ca. 125).:
Now the Christians trace their origin from the Lord Jesus Christ. And He is acknowledged by the Holy Spirit to be the son of the Most High God, who came down from heaven for the salvation of men.(Apology, 2).
For they know God, the Creator and Fashioner of all things through the only-begotten son and the Holy Spirit, and beside Him they worship no other God. (Apology 15)
Justin Martyr (100-165), Dialogue with Trypho, chapters 48, 49:
And [the Jew] Trypho said, “…Resume the discourse… For some of it appears to me to be paradoxical, and wholly incapable of proof. For when you say that this Christ existed as God before the ages, then that He submitted to be born and become man, yet that He is not man of man, this [assertion] appears to me to be not merely paradoxical, but also foolish.”
And I [Justin] replied to this, “I know that the statement does appear to be paradoxical, especially to those of your race… Now assuredly, Trypho,” I continued,”[the proof] that this man is the Christ of God does not fail, though I be unable to prove that He existed formerly [i.e. before his conception] as Son of the Maker of all things, being God, and was born a man by the Virgin. But since I have certainly proved that this man is the Christ of God, whoever He be, even if I do not prove that He pre-existed, and submitted to be born a man of like passions with us, having a body, according to the Father’s will; in this last matter alone is it just to say that I have erred, and not to deny that He is the Christ, though it should appear that He was born man of men, and [nothing more] is proved [than this], that He has become Christ by election. For there are some, my friends,” I said, “of our race [i.e. Christians], who admit that He is Christ, while holding Him to be man of men; with whom I do not agree, nor would I, even though most of those who have [now] the same opinions as myself should say so; since we were enjoined by Christ Himself to put no faith in human doctrines, but in those proclaimed by the blessed prophets and taught by Himself.”
And Trypho said, “Those who affirm him to have been a man, and to have been anointed by election, and then to have become Christ, appear to me to speak more plausibly than you who hold those opinions which you express. For we all expect that Christ will be a man [born] of men, and that Elijah when he comes will anoint him. But if this man appear to be Christ, he must certainly be known as man[born] of men; but from the circumstance that Elijah has not yet come, I infer that this man is not He[the Christ].”