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The Ongoing Struggle with Sin in Believers

Paul's question in Romans 6:2 frames the paradox: "How can we who died to sin still live in it?" [2]. Yet the same apostle who insists believers have died to sin also describes an ongoing struggle in Romans 7, and the psalmist confesses, "My sin is constantly before me" [3]. Christian theology has consistently affirmed that regeneration does not eradicate the presence of sin in this life, though it fundamentally alters the believer's relationship to it.

The Reality of Remaining Sin

Scripture presents believers as simultaneously freed from sin's dominion and yet still contending with its presence. First John addresses this tension directly: the epistle warns that "if we say, We have no sin, we deceive ourselves, and the truth is not in us" [12]. This denial is not merely mistaken but self-deceptive, indicating that the truth has no operative place in one's thinking [12]. The text distinguishes between the guilt of actual sins committed even after conversion and "the SIN of our corrupt old nature still adhering to us" [8]. The perfect tense "we have sinned" extends the reality of sin's commission into the present, not merely referencing pre-conversion transgressions [8].

The distinction between sinning and "continuing in sin" proves crucial. When 1 John 3:6 states that whoever abides in Christ "does not sin," the Greek verb denotes ongoing, habitual action rather than isolated acts [11]. The verse addresses persistent, unrepentant patterns rather than claiming sinless perfection. To the extent believers maintain continual fellowship with Christ, they do not practice sin as a lifestyle [11]. Yet this abiding is itself a struggle, not an achieved state of moral automatism.

The Nature of the Struggle

All human beings are born sinners, but whereas the wicked indulge their sinful nature, the godly fight against it [4]. This conflict characterizes the regenerate life. The believer resists sin, Satan, the world's lusts, its frowns and flatteries, and false teachers [9]. Hebrews 12:4 reminds its audience that though they have resisted, they have not yet "resisted unto blood" as some Old Testament saints and martyrs had done [9]. The struggle is real, costly, and ongoing.

The most aggravated form of sin remains unbelief in Christ [10]. As all sin roots itself in unbelief, the Spirit's work in convicting of sin does not extinguish but intensifies the sense of all other sins by fastening this central truth upon the conscience [10]. Deliberate sins carry an insolent or arrogant attitude, and the great sin is rebellion itself [7]. The first human transgression was not merely eating forbidden fruit but "a love of self, dishonor to God, ingratitude to a benefactor, disobedience to the best of Masters—a preference of the creature to the Creator" [6]. These same dynamics persist in the believer's remaining corruption.

Assurance Amid the Struggle

The doctrine of perseverance addresses whether this ongoing struggle threatens final salvation. Those justified and regenerated "can neither totally nor finally fall away from grace, but will certainly persevere therein and attain everlasting life" [1]. This assurance rests on the immutability of divine decrees, the provisions of the covenant of grace, and specific biblical promises [1]. John 10:28-29, Romans 11:29, Philippians 1:6, and 1 Peter 1:5 teach that believers will certainly continue in grace [1].

Yet this assurance does not minimize the struggle. The one who "committeth sin is of the devil" in the sense of imitation, not generation [5]. Augustine clarifies that the devil begets none and creates none; rather, whoever imitates the devil becomes his child by imitation, not by proper birth [5]. From the devil comes corruption, not generation [5]. The believer's identity remains rooted in regeneration by God, even while contending with patterns of thought and desire that echo the adversary's rebellion. The struggle is neither evidence of lost salvation nor permission for complacency, but the expected shape of sanctification in a fallen world.

Sources

  1. Easton's Bible Dictionary “Easton's Bible Dictionary: Perseverance of the saints — Their certain continuance in a state of grace. Once justified and regenerated, the believer can neither totally nor finally fall away from grace, but will certainly persevere therein and attain everlasting life. This doctrine is clearly taught in these passages, John 10:28, 29; Rom. 11:29; Phil. 1:6; 1 Pet. 1:5. It, moreover, follows from a consideration of (1) the immutability of the divine decrees (Jer. 31:3; Matt. 24:22-24; Acts 13:48; Rom. 8:30); (2) the provisions of the covenant of grace (Jer. 32:40; John 10:29; 17:2-6); (3) the ato”
  2. Romans “Romans 6:2 (LEB) — May it never be! How can we who died to sin still live in it?”
  3. Psalms “For I know my transgressions. My sin is constantly before me. -- Psalms 51:3”
  4. Psalms (Protestant academic) “Tyndale House on Psalms 58:3: 58:3 All human beings are born sinners (see 51:5); however, whereas the wicked indulge their sinful nature, the godly fight against it (Rom 7:19-23; Jas 4:1-10).”
  5. 1 John (Presbyterian) “Jamieson, Fausset & Brown on 1 John 3:8: He that committeth sin is of the devil--in contrast to "He that doeth righteousness," Jo1 3:7. He is a son of the devil (Jo1 3:10; Joh 8:44). John does not, however, say, "born of the devil." as he does "born of God," for "the devil begets none, nor does he create any; but whoever imitates the devil becomes a child of the devil by imitating him, not by proper birth" [AUGUSTINE, Ten Homilies on the First Epistle of John, Homily 4.10]. From the devil there is not generation, but corruption [BENGEL]. sinneth from the beginning--from the time that any beg”
  6. Genesis (Presbyterian) “Jamieson, Fausset & Brown on Genesis 3:13: beguiled--cajoled by flattering lies. This sin of the first pair was heinous and aggravated--it was not simply eating an apple, but a love of self, dishonor to God, ingratitude to a benefactor, disobedience to the best of Masters--a preference of the creature to the Creator.”
  7. Psalms (Protestant academic) “Tyndale House on Psalms 19:13: 19:13 An individual who commits deliberate sins does so with an insolent (86:14) or arrogant (119:21, 69) attitude. • The great sin is rebellion (see 32:1).”
  8. 1 John (Presbyterian) “Jamieson, Fausset & Brown on 1 John 1:10: Parallel to Jo1 1:8. we have not sinned--referring to the commission of actual sins, even after regeneration and conversion; whereas in Jo1 1:8, "we have no sin," refers to the present GUILT remaining (until cleansed) from the actual sins committed, and to the SIN of our corrupt old nature still adhering to us. The perfect "have . . . sinned" brings down the commission of sins to the present time, not merely sins committed before, but since, conversion. we make him a liar--a gradation; Jo1 1:6, "we lie"; Jo1 1:8, "we deceive ourselves"; worst of al”
  9. Hebrews (Baptist/Reformed) “John Gill on Hebrews 12:4: Ye have not yet resisted unto blood,.... They had resisted sin, and Satan, and the world, the men of it, and the lusts of it, and its frowns and flatteries, and also false teachers, even every adversary of Christ, and their souls; but they had not, as yet, resisted unto blood, or to the shedding of their blood, as some of the Old Testament saints had done; as some in the times of the Maccabees, and as James the apostle of Christ, and as Christ himself: wherefore the apostle suggests, that they ought to consider, that they had been indulged; and what they had been eng”
  10. John (Presbyterian) “Jamieson, Fausset & Brown on John 16:9: Of sin, because they believe not on me--As all sin has its root in unbelief, so the most aggravated form of unbelief is the rejection of Christ. The Spirit, however, in fastening this truth upon the conscience, does not extinguish, but, on the contrary, does consummate and intensify, the sense of all other sins.”
  11. 1 John (Protestant academic) “Tyndale House on 1 John 3:6: 3:6 continues to live in him (Greek menō): This indicates “abiding” and “remaining” (John 15:1-8) in contrast to departing into falsehood. To the extent that we live in continual, dependent fellowship with Christ and in faithfulness to the apostles’ teachings, we will not sin. • keeps on sinning: This verb denotes sin as an ongoing, repeated action. John was not saying that anyone who sins once does not know God (i.e., has no relationship with God). But if we persist in sin, we demonstrate a lack of relationship with God.”
  12. 1 John (Nonconformist/Puritan) “Matthew Henry on 1 John 1:8: Here, I. The apostle, having supposed that even those of this heavenly communion have yet their sin, proceeds here to justify that supposition, and this he does by showing the dreadful consequences of denying it, and that in two particulars: - 1. If we say, We have no sin, we deceive ourselves, and the truth is not in us, Jo1 1:8. We must beware of deceiving ourselves in denying or excusing our sins. The more we see them the more we shall esteem and value the remedy. If we deny them, the truth is not in us, either the truth that is contrary to such denial (we lie i”
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