1 John 3:5: What does it say on sin?
What does 1 John 3:5 reveal about the nature of sin?

Original Text

“But you know that Christ appeared to take away sins, and in Him there is no sin.” — 1 John 3:5


Immediate Literary Context

Verse 5 is framed by two key statements:

• v. 4: “Everyone who practices sin practices lawlessness as well, for sin is lawlessness.”

• v. 6: “No one who abides in Him keeps on sinning; no one who continues to sin has seen Him or known Him.”

John therefore sets out (a) a definition of sin (lawlessness), (b) Christ’s sin-removing mission, and (c) the ethical consequence for believers. Verse 5 is the theological hinge between definition and application.


Sin Defined as Lawlessness

By pairing vv. 4-5, John identifies sin with ἀνομία (“lawlessness”), a deliberate violation of God’s moral order. Sin is not a cosmetic flaw but active insubordination, requiring removal rather than mere management.


The Purpose of the Incarnation

“Christ appeared” (ἐφανερώθη) echoes John 1:14 and Hebrews 9:26: the Son entered history for a singular redemptive purpose—“to take away sins.” The Greek perfect tense underscores a completed, decisive event whose results endure.


Sin’s Incompatibility with the Person of Christ

“In Him there is no sin.” Parallel texts (2 Corinthians 5:21; Hebrews 4:15; 1 Peter 2:22) affirm the absolute moral purity of Jesus. Because He is ontologically sinless, He alone can be the sin-bearer (Isaiah 53:6). Sin is thus portrayed as a foreign contaminant utterly absent from His being yet transferable to Him for substitutionary atonement.


Ethical Consequences for the Believer

Because Christ’s appearing eradicates sin’s legal standing, habitual sin becomes incongruent with authentic discipleship (v. 6). John does not teach sinless perfectionism (cf. 1 John 1:8-10) but insists that genuine regeneration produces an observable rupture with practiced lawlessness.


Consistency with the Old Testament Witness

• Typology: The Passover lamb (Exodus 12), the Day of Atonement scapegoat (Leviticus 16), and Isaiah’s Suffering Servant all anticipate a sin-bearing Messiah.

• Doctrine of Holiness: God’s nature is “Holy, Holy, Holy” (Isaiah 6:3); therefore, sin is relational rupture, requiring removal for restored fellowship.


Patristic Confirmation

Irenaeus (Against Heresies 3.16.9) and Athanasius (On the Incarnation 20) quote or allude to 1 John 3:5 when defending Christ’s sinless nature and redemptive mission, showing early, widespread acceptance of the verse’s reading and theology.


Practical Pastoral Applications

• Assurance: The permanence of Christ’s sin-removal provides a stable foundation for assurance.

• Holiness: Awareness that sin cost the Incarnation motivates ethical vigilance.

• Mission: The exclusivity of Christ’s sin-removal energizes evangelism; no alternative remedy exists.


Summary

1 John 3:5 reveals sin to be (1) lawless rebellion, (2) incompatible with Christ, and (3) removable only through His sinless, incarnate sacrifice. The verse anchors Christian soteriology, ethics, and hope in the objective, historical act of the sin-bearing Messiah.

How does 1 John 3:5 define the purpose of Jesus' coming to earth?
Top of Page
Top of Page