Why Paul Denounced Confidence in the Flesh

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Paul’s vigorous denunciation of confidence in the flesh is a consistent and defining theme of his apostolic teaching. His experience as a former Pharisee, who once fully relied on his own religious attainments, made him uniquely qualified to expose the fatal error of placing any trust in human merit. To understand why Paul viewed confidence in the flesh as an absolute contradiction of the gospel, one must examine both the theological principles he taught and the practical consequences of this misplaced confidence.

Paul defines “the flesh” (sarx, σάρξ) in many contexts as referring to the human condition in its weakness and sinfulness, especially in regard to attempts at self-justification apart from Jehovah’s provision through Christ. In Philippians 3:3, Paul commands believers, “For we are the circumcision, who worship by the Spirit of God and glory in Christ Jesus and put no confidence in the flesh.” He includes himself as one who has entirely forsaken that false ground of boasting.

The fundamental problem with confidence in the flesh is that it defies the essential truth of man’s total depravity. According to Romans 3:10-12, “There is none righteous, not even one; there is none who understands, there is none who seeks after God; all have turned aside, together they have become worthless; there is none who does good, not even one.” The Law reveals the universal guilt of mankind (Romans 3:19-20), leaving no room for any person to claim righteousness on the basis of works.

Paul knew firsthand the spiritual blindness that such confidence produces. He speaks of his former life in Galatians 1:13-14: “For you have heard of my former manner of life in Judaism, how I persecuted the church of God beyond measure and tried to destroy it; and I was advancing in Judaism beyond many of my contemporaries, being more extremely zealous for my ancestral traditions.” His intense zeal was rooted in confidence in his own religious obedience and standing within Judaism, yet it led him to become an enemy of the very Messiah he claimed to serve.

The cross of Christ utterly destroys all grounds for confidence in the flesh. It exposes the reality that even the best human works cannot atone for sin or earn divine favor. Paul emphasizes this truth in Ephesians 2:8-9: “For by grace you have been saved through faith, and this is not of yourselves, it is the gift of God, not as a result of works, so that no one may boast.” Boasting is excluded because salvation is entirely of Jehovah’s mercy.

Paul’s denunciation of confidence in the flesh also serves as a safeguard for the purity of the gospel message. In Galatians 5:2-4, Paul warns, “Behold I, Paul, say to you that if you receive circumcision, Christ will be of no benefit to you. And I testify again to every man who receives circumcision, that he is under obligation to keep the whole Law. You have been severed from Christ, you who are seeking to be justified by law; you have fallen from grace.” Here Paul illustrates the danger: to add even a single work of the law as a requirement for justification nullifies the sufficiency of Christ’s atonement and renders the gospel powerless.

Furthermore, confidence in the flesh leads inevitably to spiritual pride, which Paul condemns throughout his letters. In 1 Corinthians 1:29-31, he declares, “so that no human being might boast before God. But by his doing you are in Christ Jesus, who became to us wisdom from God, and righteousness and sanctification and redemption, so that, just as it is written, ‘Let him who boasts, boast in the Lord.’” Any boasting in self is incompatible with a gospel of grace.

Paul also teaches that confidence in the flesh fails to produce genuine righteousness or inward transformation. The Judaizers boasted in their external conformity to the law, especially circumcision (Galatians 6:12-13), yet their actions betrayed hearts still enslaved to sin. In contrast, true righteousness, which flows from faith in Christ, produces both justification and the ongoing process of sanctification. Paul explains this in Romans 8:3-4: “For what the Law could not do, weak as it was through the flesh, God did: sending his own Son in the likeness of sinful flesh and for sin, he condemned sin in the flesh, so that the requirement of the Law might be fulfilled in us, who do not walk according to the flesh but according to the Spirit.”

For Paul, the rejection of confidence in the flesh was both doctrinal and personal. He says in Galatians 2:20, “I have been crucified with Christ; and it is no longer I who live, but Christ lives in me.” Paul regarded his former life under Judaism as dead. His new life was defined not by personal achievement but by union with Christ and reliance on His righteousness.

The lesson is universal for the church. Every age is tempted to return to confidence in the flesh, whether through religious formalism, legalism, or self-reliance. Paul’s uncompromising stance is a permanent reminder that only the cross can save, only the cross can sanctify, and only the cross can glorify. Any other foundation is sinking sand.

Thus, Paul’s words in Galatians 6:14 serve as the final word in the matter: “But far be it from me to glory, except in the cross of our Lord Jesus Christ, through whom the world has been crucified to me, and I to the world.” Paul glories only in that which stripped him of self-confidence and replaced it with the perfect righteousness of the crucified and risen Christ.

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About the Author

EDWARD D. ANDREWS (AS in Criminal Justice, BS in Religion, MA in Biblical Studies, and MDiv in Theology) is CEO and President of Christian Publishing House. He has authored over 220+ books. In addition, Andrews is the Chief Translator of the Updated American Standard Version (UASV).