Many students of the Scriptures have encountered the question of who is being identified as the “true God and eternal life” at 1 John 5:20. At first glance, the verse might appear to call Jesus Christ the “true God.” However, a careful reading—using a literal translation of the Greek text, along with the historical-grammatical method—suggests that the apostle John had Jehovah in mind. As Jesus’ Father and the One who sent him, Jehovah is identified in Scripture as “the only true God.” (John 17:3) That divine name, represented by the Tetragrammaton in the Hebrew Scriptures, deserves recognition in modern translations where the passage refers back to the Father. This article examines 1 John 5:20 in its historical setting, grammatical structure, and broader canonical context to clarify who “the true God and eternal life” is, while also highlighting the practical significance of this truth for Christian believers.

The Historical and Contextual Setting of 1 John

The apostle John wrote his first letter near the end of the first century C.E. The Christian congregation faced challenges from false teachings that minimized either the identity or the role of Jesus Christ. John frequently emphasized the importance of accurately knowing the Father and the Son. By underscoring the Father’s unique identity and the nature of Jesus as the Christ, John strove to maintain spiritual clarity among believers.

1 John is pastoral in tone, yet it firmly defends the reality of Jesus’ humanity, his divine origin, and his intimate relationship with the One who sent him. John repeatedly draws attention to the Father’s supremacy, which is consistent with the rest of the Christian Greek Scriptures. An example is at 1 John 4:9, where the apostle writes that God “sent his only begotten Son into the world, so that we might live through him.” The letter’s context consistently views the Father as the One who initiates salvation and is to be worshiped as “the only true God.” (John 17:3)

The Language of 1 John 5:20

1 John 5:20 in a literal translation (UASV) reads: “And we know that the Son of God has come and has given us understanding, so that we may know him who is true; and we are in him who is true, in his Son Jesus Christ. This is the true God and eternal life.” The principal question involves the referent of the demonstrative pronoun “this” (houtos) in the final clause. Some argue that “this” refers directly to Jesus Christ, while others maintain it refers to the Father.

In Greek, grammatical antecedents are not always determined by immediate proximity. The context and the dominant subject in the author’s mind guide the proper identification. Multiple scholars, including B. F. Westcott, have pointed out that the “dominant subject” in 1 John 5:20 is the Father. Furthermore, the overall theology of John’s writings consistently elevates the Father as the One who is “true” and from whom eternal life proceeds. This broader literary context indicates that John intended the Father to be identified as “the true God.”

The Demonstrative Pronoun “Houtos”

The pronoun houtos can refer to the nearest subject, but it can also refer to a more prominent subject that is not the closest antecedent. Examples throughout the Johannine writings illustrate this usage:

John 1:40, 41 highlights Andrew and Simon Peter, stating: “One of the two who heard John speak and followed Jesus was Andrew, Simon Peter’s brother. This one first found his own brother Simon.” Although Simon is mentioned last, “this one” refers to Andrew, not Simon. The context directs us to Andrew as the logical reference.

2 John 7 reads: “For many deceivers have gone out into the world, even those who do not confess the coming of Jesus Christ in the flesh. This is the deceiver and the antichrist.” The pronoun cannot refer to Jesus Christ; rather, it refers to the many deceivers who refuse to acknowledge the reality of Jesus’ coming in the flesh.

Such examples of Johannine usage of houtos confirm that immediate proximity does not always govern the pronoun’s reference. Instead, the subject that dominates John’s discussion is commonly understood to be the proper antecedent.

The Identity of the True God in the Johannine Literature

The Gospel of John and the letters of John consistently identify Jehovah as the One who is supremely the “true” God. John 17:3, for instance, contains Jesus’ own words: “This is eternal life, that they may know you, the only true God, and the one whom you sent, Jesus Christ.” Jesus addresses the Father as “the only true God,” thereby reinforcing the apostle John’s repeated emphasis that the Father is the One from whom all life-giving blessings flow.

John 20:17 preserves the resurrected Jesus speaking to Mary Magdalene: “I am ascending to my Father and your Father, to my God and your God.” The clear implication is that Jesus acknowledges someone else—his Father—as “God.” The apostle John, who recorded these words, was acutely aware of who Jesus worshiped and consistently sets the Father as the ultimate source of divine authority.

In 1 John 5:20, John addresses those who have come to know the Father through Christ. Jesus is the channel for attaining knowledge of God, and yet, Jehovah remains the One “who is true.” This theological pattern shows that John’s entire line of reasoning directs worship and ultimate divine identity to the Father.

The Theological Implications of 1 John 5:20

If 1 John 5:20 identified Jesus as “the true God,” it would conflict with numerous statements in Scripture affirming that the Father is uniquely the only true God. At John 17:3, Jesus distinctly separates himself from the One who is “the only true God.” Furthermore, the apostle Paul explicitly proclaims in 1 Corinthians 8:6 that “there is actually to us one God the Father, out of whom all things are.” The same apostle states at 2 Corinthians 1:9 that the Father is the One who resurrects the dead and who gave Jesus life again. Identifying Jesus as “the true God” in 1 John 5:20 would blur the biblical depiction of the roles of the Father and the Son.

Interpreting 1 John 5:20 in a way that highlights the Father as “the true God” preserves the harmony of John’s entire corpus and aligns with Paul’s statements. This reading does not diminish Jesus’ authority or significance. Rather, it upholds the testimony that Jesus is the exalted Son who perfectly revealed the Father but who also prayed to and worshiped the Father as God. (John 4:23, 24; John 11:41)

The Role of Jesus Christ

Though Jehovah is the ultimate source of truth and life, Jesus is vital to God’s purpose. The verse plainly says that the Son of God “has come and has given us understanding.” (1 John 5:20) Jesus’ earthly ministry consisted of teaching people about the Father and opening their minds to divine truths. As John 7:16 explains: “My teaching is not mine, but belongs to him that sent me.” Jesus arrived to make the Father’s name and character known, fulfilling what he declared at John 17:6: “I have manifested your name to the men whom you gave me out of the world.”

Hence, 1 John 5:20 reveals that the Son’s primary objective was to lead believers into a genuine knowledge of the Father. This “understanding” is not a miraculous infusion of spiritual insight but rather knowledge gleaned from Jesus’ words and actions, preserved in the inspired Scriptures. Jesus educated his followers about who the Father is, how to worship Him, and how to live in harmony with divine standards. For that reason, when the apostle John says that the Son “has given us understanding,” it highlights Jesus’ teaching role, not the granting of supernatural comprehension to every believer.

The One “True God” and Eternal Life

Psalm 36:9 calls Jehovah “the source of life.” The apostle Paul likewise connects the gift of eternal life to God’s grace through Jesus Christ. (Romans 6:23) Jehovah remains “the rewarder of those seeking him.” (Hebrews 11:6) According to John’s letter, the promise of everlasting life is extended to those who know the Father and remain in union with Him through Christ.

John underscores this relationship when he writes that believers are “in him who is true, in his Son Jesus Christ.” (1 John 5:20) “In him who is true” refers to believers’ relationship with the Father, while “in his Son Jesus Christ” reminds them that they must remain in union with the Son to approach the Father correctly. Jesus is the mediator, providing the atoning sacrifice that makes it possible for humans to be reconciled to the Father. (1 John 2:1, 2)

Jehovah is called “the true One” because He never deviates from His own standards, nor can He lie. (Titus 1:2) He is reliable, and the teachings emanating from Him are truth. (John 17:17) The Father’s unchangeable nature contrasts with the human tendency to waver. When 1 John 5:20 declares that we are “in him who is true,” it indicates a secure spiritual standing—one that endows us with confidence in our worship of the One who cannot lie.

The Consistency with John 17:3

No discussion of “the true God” in Johannine writings would be complete without returning to John 17:3, where Jesus addresses the Father as “the only true God.” Christ’s explicit statement is the theological bedrock for understanding the apostle John’s viewpoint in his letters. Since Jesus publicly prayed these words, it affirms that the Father’s identity as the true God was not a private, hidden notion but a central belief Jesus wanted his disciples to comprehend fully.

At John 17:3, Jesus connects eternal life with knowledge of the Father and the Son. Thus, when 1 John 5:20 concludes with the phrase “the true God and eternal life,” the parallel to John 17:3 is unmistakable. The gift of knowing the Father and His Son paves the way to eternal life. The Father is the final Source of that life. As the apostle Paul wrote at Romans 6:23, “the free gift of God is everlasting life in Christ Jesus our Lord.” The Son is the instrument or channel through whom that life is granted, but it originates with the Father.

Avoiding Confusion in Translation

Some modern translations render 1 John 5:20 in a way that appears to identify Jesus as the “true God.” While Greek grammar can be read that way, the broader context of the Johannine writings and the rest of the New Testament points toward the Father as the One primarily in view. Translators who consider the context, the theology of John, and examples of how demonstrative pronouns function in Greek often choose to render 1 John 5:20 in a manner that attributes “the true God” to the Father.

Further clarity arises from reading John’s concluding warning in 1 John 5:21: “Little children, guard yourselves from idols.” The apostle contrasts the worship of any false object or being with the worship of the One who is genuinely “true.” That emphasis on fidelity to the Father’s exclusive worship resonates with how Jesus repeatedly directed worship to Jehovah. (Matthew 4:10; John 4:23) Therefore, referencing the Father as the culminating focus of 1 John 5:20–21 strengthens the admonition against idolatry.

The Historical-Grammatical Method and 1 John 5:20

The historical-grammatical approach to biblical interpretation involves examining the original languages, historical setting, and literary context without imposing extraneous doctrines onto the text. Applying this method to 1 John 5:20 yields a consistent reading that ties the clause “This is the true God and eternal life” to the Father. John’s background as a first-century Jew and disciple of Jesus would have shaped his understanding of God’s absolute oneness. The Shema, repeated by devout Jews, states: “Hear, O Israel: Jehovah is our God, Jehovah is one.” (Deuteronomy 6:4) Jesus himself acknowledged the primacy of this command. (Mark 12:29)

This background resonates with the plain sense of John’s words in 1 John 5:20 when read in harmony with John 17:3. The entire scriptural witness supports the notion that it is the Father whom Jesus revealed, taught people to approach, and consistently exalted. John 4:23 records Jesus’ teaching: “Nevertheless, the hour is coming, and it is now, when the true worshippers will worship the Father in spirit and truth.” A historical-grammatical reading takes such statements into account, preserving unity across all Johannine texts.

Practical Application for Believers

Recognizing Jehovah as the One who is “the true God and eternal life” fosters a stronger relationship with the Father. Knowing that he is the Source of truth and life instills reverence and gratitude. Believers draw closer to God through the study of the Word and prayer, just as Jesus taught them to do. (John 17:17) When they understand that Jesus gave them “understanding” about the Father, they see the inseparable bond between the Son’s teaching and the Father’s will. (1 John 5:20)

Such an approach gives depth to Christian worship and enriches understanding. Christians see that they are “in him who is true” when they acknowledge the Father’s sovereignty and appreciate Christ’s role as the means of redemption. This knowledge motivates them to demonstrate love for one another, abide in God’s commandments, and avoid anything that competes with their worship of the Father. (1 John 5:3)

Moreover, believers become cautious about any teaching that diminishes the Father’s position or attempts to isolate Jesus from his role as the One who points us to the Father. (Matthew 7:21; John 14:28) The careful distinctions upheld in Scripture protect the congregation from confusion and ensure that worship remains directed to “the only true God.” (John 17:3)

Addressing Alternative Interpretations

Some argue Jesus is “the true God” in 1 John 5:20, citing proximity and verses like John 1:1 or Titus 2:13, “our great God and Savior.” However, the Historical-Grammatical method prioritizes context. Titus 2:13 distinguishes Jesus from “the glory of the great God” (the Father), suggesting a dual reference. 1 John 5:20’s purpose—to affirm the true God against idols—favors the Father. This does not diminish Jesus’s deity but clarifies the distinction, with Colossians 1:15 calling him “the image of the invisible God,” subordinate in role (John 14:28).

Conclusion

In 1 John 5:20, John identifies the Father, Jehovah, as “the true God and eternal life,” revealed through Jesus Christ. The Historical-Grammatical method, supported by scripture and scholarship, confirms this, with the Father as Creator, source of truth, and giver of life, worthy of exclusive devotion, as warned against idols.

In 1 John 5:20, the apostle John underscores a vital truth: The Father is the One “who is true” and the ultimate Source of eternal life. Jesus Christ, the Son, is central in revealing that truth and leading believers into a relationship with the Father. The demonstrative pronoun in the phrase “This is the true God and eternal life” most naturally points back to the Father, consistent with John 17:3, John’s overall theology, and the historical-grammatical analysis of the Greek text.

Jesus’ role in giving “understanding” emphasizes that believers come to know the Father primarily through Christ’s teachings. Rather than diminishing Jesus, this understanding preserves the full biblical testimony that God the Father has sovereignly willed salvation, while Jesus perfectly executed that will on earth. Jehovah is “the only true God,” and Jesus is the beloved Son sent to declare that glorious truth. (John 1:18)

By confirming that the Father is “the true God and eternal life,” Christians gain deeper appreciation for the divine arrangement in which the Father grants life through the Son. Each believer is led to cultivate reverence for the Father, draw on the guidance of Christ’s teachings in Scripture, and uphold pure worship free from idolatry. As Jesus said: “Not everyone who says to me, ‘Lord, Lord,’ will enter the kingdom of the heavens, but the one who does the will of my Father who is in the heavens.” (Matthew 7:21) Believers thus take comfort in knowing they serve the One who is supremely “true,” the God who graciously provides everlasting life in union with His Son.

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