0. Introduction
The earliest Patristic writings are often called the "Apostolic Fathers," which are a collection of first and second century Christian writings. I shall discuss there views of the Father, Son and Spirit. Ignatius is a more difficult topic, therefore I have discussed him in more detail elsewhere.
1. General Data
Only the Father is ever called "one God," and "only God" by the Apostolic Fathers. (1 Clem. 13:1; 35:3; 43:6; 44:1; 46:6; 59:3; 64:1; 2 Clem. 20:5; Poly. Phil. 1:1, 3; 3:3; 5:2; 3; Hermas, Mand. 1.1.1; Mand. 5.1.2; 10.3.3.) The epistle to Diognetus calls Christ "the Eternal One, who is accounted a Son," ούτοσ ο αεί, ο σήμερον υιό λογισθείς, and speaks of his pre-existence in language reminiscient of the prologue of John's Gospel. (Diog. 11:5) Ignatius calls Jesus "God," θεὸς at least eleven times. (I. Eph. Prol, 1:1; 7:2; 18:2; 19:3; I. Smyr. 1:1; I. Trall. 7:1; I. Rom. Prol. (2*); 3:2; 6:3; I. Poly. 8:3.) He is fond of calling Christ "our God," θεός ημών, and "God, come in the flesh," εν σαρκί γενομενος θεός. There may, or may not be an additional three instances of this, but at this time we cannot conclusively determine due to textual variants or ambiguity. (I. Eph. 8:1; I. Magn. 6:1) The pre-existence of Christ was also generally taught from the earliest centuries and was not a later development. (Ad Diog. 7:2, 4; Hermas Par 9:12:2; Barnabas 5:5; 6:12; 2 Clem. 9:4; Poly. Phil. 12:2.) And the personhood of the Holy Spirit is affirmed as subordinate to the Son. (1 Clem. 58:2; Mart. Pol. 14:1-3; Par. 5.6.5; 9.1.1.) The most plain is the statement of Clement, "as God lives, and as the Lord Jesus Christ lives and the Holy Spirit, who are the faith and hope of the elect." (1 Clem. 58:2) However, in no instance is the Holy Ghost directly called "God."
2. Papias and Barnabas
From Papias of Hierapolis (60-130) the student of the apostle St. John and companion of Polycarp, no complete works survive. (Eusebius, Ecc. Hist. 3.36.1-2.) His works are only known in fragmentary quotations from which we have nothing extant which would be valuable for this discussion. The Epistle of Barnabas, which many early Fathers attribute to the Biblical apostle Barnabas (died c. 60) does not present a systematic picture of Christ but it does speak of the atonement frequently. It attests to the pre-existence of Christ in several places. (Barn. 5:11; 6:12; cf. Gen. 1:26.)
"There is yet this also, my brothers; if the Lord endured to suffer for our lives, though he was Lord of the whole world, to whom God said from the foundation of the world, "Let us make man after our image and likeness," how then did He endure to suffer at the hand of men?" (Barn. 5:5)
Barnabas claims that it was at the command of the Father that the Son became incarnate to die for sins and prepare a people for his glory. (Barn. 14:6) He refers to the Holy Spirit as the inspirer of the prophets and seems to confuse him with the Son in several places. (Barn. 6:14; 12:2; 14:3; 19:7.) His primary concern is a polemic against Judaism, hence does not talk in detail about the relations between the three persons.
3. The Didache
In the Didache a high Christology is not articulated, but there are several references to Christ as the "servant" of God the Father and the "vine" of David. (Did. 7:1, 3; 9:1, 3; 10:3.) It contains the earliest extant written quotation of the sacred baptismal formula found in St. Matthew 28:19, "in the name of the Father and of the Son and of the Holy Spirit." (Did. 7:1, 3; cf. St. Matt. 28:19.)
4. Clement of Rome
With regard to Clement, the great bishop of Rome who was likely a companion of the apostle St. Paul, we have only one authentic epistle attributed to him which was written to the Corinthians. (He may very well be the same who is mentioned at Philippians 4:3 when he says, "help those women who labored with me in the gospel, with Clement also, and with other my fellow workers, whose names are in the book of life.") He never once uses "God" θεός for the Son or the Holy Spirit, but reserves θεός for the Father, and several times calls him "the only God." (1 Clem. 43:6; 44:1) He distinguishes Christ from the "almighty God'' in several places and describes Christ as a "servant," παιδός of God. (1 Clem. 32:4; 49:6; 59:3; 62:2) When referring to the "King of eternity" mentioned in 1 Timothy 1:17, he applies the text to the Father and not to the Son. (1 Clem. 61:2) Clement gives exquisite titles to God, "the Creator and Father of the worlds, the Supremely Holy one," "the Benefactor of spirits and the God of all flesh," "The Creator and Bishop of every spirit," "the all-seeing God and Ruler of spirits and Lord of All flesh, who chose the Lord Jesus Christ." (1 Clem. 35:3; 59:3; 64:1) Clement teaches the pre-existence of Christ when he says that it was Christ who spoke in the Psalms "through the Holy Spirit." (1 Clem. 22:1; cf. Psa. 34:11-19) And again when he says, "Jesus Christ was sent forth from God. So then Christ is from God'' borrowing language from St. John's Gospel. (1 Clem. 42:1, 2; cf. St. Joh. 6:38; 13:1-3; 16:30.) He quotes from the epistle to the Hebrews to demonstrate that Christ is superior to all angels. (1 Clem. 26:2-5; cf. Heb. 1:3-7, 13.) He teaches that God "elected" Christ and appointed him as high priest and savior. (1 Clem. 64:1) Although Clement writes a great deal about creation, he never directly implicates Christ in the creation of the universe in his epistle. (1 Clem. 20:1-10; 33:4; 35:3.) The subordination of Christ to the Father is emphasized in several places,
"You alone are the benefactor of spirits and the God of all flesh… you have chosen those who love you through Jesus Christ, your beloved servant, through whom you instructed us. Let all the nations know that you are the only God, and that Jesus Christ is your servant." (1 Clem. 59:3, 4)
There are a few indications of belief in the personality of the Holy Spirit, most notably, "as God lives, and as the Lord Jesus Christ lives, and the Holy Spirit, who are the faith and hope of the elect." (1 Clem. 58:2) "Have we not one God and one Christ and one Spirit of grace that was shed upon us?" (1 Clem. 46:6; 13:1) But he says nothing of the relation of the Spirit to the other persons. In the spurious second epistle of Clement, we find an explicit statement of the pre-existence of Christ,
"If Christ the Lord who saved us, being first spirit, then became flesh, and so called us, in like manner also shall we in this flesh receive our reward." (2 Clem. 9:5)
It was Christ who "called us when we did not exist and out of nothing willed us into existence." (2 Clem. 1:8) Yet in this epistle as well, θεός is reserved for the Father who is called,
"The only God, invisible, the Father of Truth, who sent forth unto us the Savior and Prince of immortality, through whom also He made manifest unto us the truth and the heavenly life, to Him be the glory for ever and ever. Amen." (2 Clem. 20:5)
The Holy Spirit is mentioned only a few times in passing, and Clement seems to confuse him with the Son when he says, "the flesh is the Church and the Spirit is Christ." (2 Clem. 14:3-5) In general the Fathers have a habit of referring to Christ as "the Spirit" or "a Holy Spirit." The Holy Spirit in St. Lk. 1:35 is often interpreted as the pre-existent Son by the Ante-Nicenes. (Justin Martyr, Apology 1.33; Tertullian, De Carne Christi, 14; Adversus Judaeos, 13; Irenaeus, Against Heresies, 5.1.3.) Hippolytus seems to be among the few exceptions to this. (Hippolytus, Sermo in sancta Theophania 9.) The definite article is lacking, πνεύμα άγιον, hence it may have been read as "a holy spirit," and on this basis was applied to the Logos.
5. Polycarp of Smyrna
From Polycarp of Smyrna (c. 69-155) we have only one epistle which was written to the Philippians but it does not talk at great length about Christology, and mentions the atonement only in passing. (Pol. Phil. 1:2, 3; 2:2) He attacks the doctrines of the docetae and moves onto general hortatory. (Pol. Phil. 7:1) It survives in the original Greek and in a later Latin translation. There are noteworthy omissions in the Greek version, for example, in the Latin version of his epistle he refers to the Lord Jesus as the "the eternal high priest himself," ipse sempiternus pontifex. (Pol. Phil. 12:2.) It is found also in the quotation of Eusebius, "eternal high priest Jesus Christ," is αιωνίου αρχιερέως Ιησού χριστού.
In the Greek versions of Polycarp's epistle, he never refers to Christ as θεός but often uses the phrases "God almighty and Jesus Christ," or "God and Christ." (Pol. Phil. 1:1, 3; 3:3; 5:2, 3.) But in the Latin version he refers to Christ once as "our Lord and God Jesus Christ" dominum nostrum et deum Iesum Christum. (Pol. Phil. 12:2.) There is no direct statement as to whether Polycarp held adoptionist views, or any clear passage which states that Christ had a prehuman existence. His main concern is to address the local pastoral issues which the Church at Phillippi mentioned when they first wrote to him. (Pol. Phil. 3:1; 13:1.) We have an early anonymous account of the Martyrdom of Polycarp which is generally dated to the second century. The opening salutation wishes "mercy, peace, and love from God the Father and our Lord Jesus Christ." He attributes to Polycarp the following words,
"O Lord God Almighty, Father of your beloved and blessed Son Jesus Christ, through whom we have received knowledge of you, the God of angels and powers and of all creation, and of the whole race of the righteous who live in your presence, I bless you for you have reckoned me worthy of this day and hour, that I may be given a place among the number of martyrs in the cup of your Christ, to the resurrection of eternal life, both of soul and of body…. I glorify you through the eternal and heavenly high priest, Jesus Christ, your beloved Son, through whom be glory to you, with him and the Holy Spirit, both now and forever. Amen." (Mart. Pol. 14:1-3.)
In this prayer we are given a direct attestation to belief in a triad of persons, the Father, Son and Holy Spirit. But in the end we are left with disappointingly inconclusive language from Polycarp, and a notable absence of developed Christological descriptions or concepts.
Click here a discussion of the remaining Apostolic Fathers.