Exposition Of 1 John 5:7 And Trinity Doctrine

The biblical passage 1 John 5:7, in its most widely accepted form, states, "For there are three who testify" (ESV) ^[1]. Another translation renders it, "Because, three, are they who are bearing witness—" (Rotherham) ^[2]. This verse is part of a larger discussion in 1 John about the credibility of faith in Jesus Christ, emphasizing the witnesses to His divine nature and mission ^{[9, 11]}.

The immediate context of 1 John 5:7-8 refers to three witnesses: "the Spirit and the water and the blood; and these three agree" (ESV). Protestant academic scholarship notes that the Spirit descended on Christ at His baptism (John 1:32-34), the water refers to His baptism (Matthew 3:13-15), and the blood signifies His crucifixion (Mark 15:37-39). These three elements collectively proclaim Jesus as God's Son ^[4].

A significant textual variant exists for 1 John 5:7. Many late manuscripts, primarily Latin, include an additional phrase known as the "Comma Johanneum." This longer version reads, "For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one. And there are three that bear witness in earth" ^[6]. This expanded reading was written in Latin centuries after the original Greek text of John's epistle to explicitly articulate the doctrine of the Trinity ^[4]. However, the vast majority of early Greek manuscripts do not contain this longer phrase ^{[4, 6]}. Scholars like Jamieson, Fausset, and Brown note that the few Greek manuscripts supporting the longer version were often copied from the Latin Vulgate or had the words added later ^[6].

Despite the textual issues surrounding the longer reading of 1 John 5:7, the doctrine of the Trinity—the belief in one God existing as three distinct Persons: Father, Son, and Holy Spirit—is a foundational tenet of Christian theology ^{[3, 10]}. The term "Trinity" itself is not found in Scripture but was coined by early Church Fathers like Theophilus (Greek trias) and Tertullian (Latin trinitas) to describe this concept ^[3]. The Athanasian Creed, an ecumenical statement from the 5th-6th century AD, articulates this doctrine by stating, "That we worship one God in Trinity, and Trinity in Unity; neither confounding the persons nor dividing the substance" ^[10].

Theological traditions affirm the Trinity based on various biblical passages, even without the disputed portion of 1 John 5:7. For instance, the benediction in 2 Corinthians 13:14 ("The grace of the Lord Jesus Christ and the love of God and the fellowship of the Holy Spirit be with you all") is seen as proving the doctrine of the Divine Trinity in unity ^[12]. Augustine, a prominent Church Father, considered the Father, Son, and Holy Spirit as the true objects of enjoyment, being "one Being, supreme above all" ^[5]. Thomas Aquinas argued that explicit belief in the Trinity is necessary for salvation, as it is integral to understanding the mystery of Christ ^[8]. John Calvin also extensively defended the Trinity against various heresies, emphasizing the unity of essence and the distinctness of the three Persons ^[7].

Sources

1 John “For there are three who testify: -- 1 John 5:7”
I John “I John 5:7 (Rotherham) — Because, three, are they who are bearing witness—”
Easton's Bible Dictionary “Easton's Bible Dictionary: Trinity — A word not found in Scripture, but used to express the doctrine of the unity of God as subsisting in three distinct Persons. This word is derived from the Gr. trias, first used by Theophilus (A.D. 168-183), or from the Lat. trinitas, first used by Tertullian (A.D. 220), to express this doctrine. The propositions involved in the doctrine are these: 1. That God is one, and that there is but one God (Deut. 6:4; 1 Kings 8:60; Isa. 44:6; Mark 12:29, 32; John 10:30). 2. That the Father is a distinct divine Person (hypostasis, subsistentia, persona, suppositum int”
1 John (Protestant academic) “Tyndale House on 1 John 5:7: 5:7-8 three witnesses: The Spirit descended on Christ at his baptism (see John 1:32-34). The water is the water in which Christ was baptized (see Matt 3:13-15; Mark 1:9-11). The blood is the blood that Christ shed at his crucifixion (see Mark 15:37-39). All three proclaim Jesus as God’s Son (1 Jn 5:6). • After the phrase three witnesses, a few very late manuscripts add in heaven—the Father, the Word, and the Holy Spirit, and these three are one. And we have three witnesses on earth. The longer version was written in Latin several centuries after John to explain the”
Schaff ANF/NPNF (Patristic) “NPNF1 Vol 2: Augustine — City of God, Christian Doctrine — CHAP. 5.--THE TRINITY THE TRUE OBJECT OF: ENJOYMENT. 5. The true objects of enjoyment, then, are the Father and the Son and the Holy Spirit, who are at the same time the Trinity, one Being, supreme above all, and common to all who enjoy Him, if He is an object, and not rather the cause of all objects, or indeed even if He is the cause of all. For it is not easy to find a name that will suitably express so great excellence, unless it is better to speak in this way: The Trinity, one God, of whom are all things, through whom are all thing”
1 John (Presbyterian) “Jamieson, Fausset & Brown on 1 John 5:7: three--Two or three witnesses were required by law to constitute adequate testimony. The only Greek manuscripts in any form which support the words, "in heaven, the Father, the Word, and the Holy Ghost, and these three are one; and there are three that bear witness in earth," are the Montfortianus of Dublin, copied evidently from the modern Latin Vulgate; the Ravianus, copied from the Complutensian Polyglot; a manuscript at Naples, with the words added in the Margin by a recent hand; Ottobonianus, 298, of the fifteenth century, the Greek of which is a m”
CCEL (Reformed) “John Calvin, Institutes of the Christian Religion, section 29: destroy, but constitute the most perfect unity 20. Conclusion of this part of the chapter, and summary of the true doctrine concerning the unity of Essence and the Three Persons. 21. Refutation of Arian, Macedonian, and Anti Trinitarian heresies. Caution to be observed. 22. The more modern Anti Trinitarians, and especially Servetus, refuted. 23. Other Anti Trinitarians refuted. No good objection that Christ is called the Son of God, since he is also called God. Impious absurdities of some heretics. 24. The name of God sometimes giv”
theology (Catholic (Scholastic)) “Aquinas, Summa Theologica, Second Part of the Second Part (Secunda Secundae), Of the Act of Faith, Art. 8: Article: Whether it is necessary for salvation to believe explicitly in the Trinity? I answer that, It is impossible to believe explicitly in the mystery of Christ, without faith in the Trinity, since the mystery of Christ includes that the Son of God took flesh; that He renewed the world through the grace of the Holy Ghost; and again, that He was conceived by the Holy Ghost. Wherefore just as, before Christ, the mystery of Christ was believed explicitly by the learned, but implicitly and”
1 John (Nonconformist/Puritan) “Matthew Henry on 1 John 5 (introduction): In this chapter the apostle asserts, I. The dignity of believers (Jo1 5:1). II. Their obligation to love, and the trial of it (Jo1 5:1-3). III. Their victory (Jo1 5:4, Jo1 5:5). IV. The credibility and confirmation of their faith (Jo1 5:6-10). V. The advantage of their faith in eternal life (Jo1 5:11-13). VI. The audience of their prayers, unless for those who have sinned unto death (Jo1 5:14-17). VII. The preservation from sin and Satan (Jo1 5:18). VIII. Their happy distinction from the world (Jo1 5:19). IX. Their true knowledge of God (Jo1 5:20), upo”
Athanasian Creed (Ecumenical) “Athanasian Creed (Ecumenical, c. 5th-6th century AD), Section 2: And the catholic faith is this: That we worship one God in Trinity, and Trinity in Unity; neither confounding the persons nor dividing the substance. For there is one person of the Father, another of the Son, and another of the Holy Spirit. But the Godhead of the Father, of the Son, and of the Holy Spirit is all one, the glory equal, the majesty coeternal. Such as the Father is, such is the Son, and such is the Holy Spirit. The Father uncreated, the Son uncreated, and the Holy Spirit uncreated. The Father incomprehensible, the So”
1 John (Baptist/Reformed) “John Gill on 1 John 5 (introduction): INTRODUCTION TO 1 JOHN 5 In this chapter the apostle treats of the nature of faith and love; of Christ the object of both, and of the witness that is bore to him; of the necessity of believing the testimony concerning him; of the confidence of prayer being heard, and concerning whom it should be made; of the happiness of regenerate persons, and of their duty to keep themselves from idols. Faith in Christ is the evidence of regeneration, and where that is, there will be love to the author of regeneration, and to them that are regenerated; and love to them”
2 Corinthians (Presbyterian) “Jamieson, Fausset & Brown on 2 Corinthians 13:14: The benediction which proves the doctrine of the Divine Trinity in unity. "The grace of Christ" comes first, for it is only by it we come to "the love of God" the Father (Joh 14:6). The variety in the order of Persons proves that "in this Trinity none is afore or after other" [Athanasian Creed]. communion--joint fellowship, or participation, in the same Holy Ghost, which joins in one catholic Church, His temple, both Jews and Gentiles. Whoever has "the fellowship of the Holy Ghost," has also "the grace of our Lord Jesus Christ," and "the love”

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