The Theology of Christian Liberty: Psalm 35, Divine Justice, and the Mortification of the Flesh

1. The Psalter stands as the Church's divinely inspired school of prayer, worship, repentance, and covenantal faith. It refuses to flatter the human condition and instead exposes the profound corruption that has entered the human heart through Adam's transgression. The Psalmists consistently testify that mankind is incapable of rendering perfectly impartial judgment because sin has corrupted both intellect and affection. David therefore prays not as one who trusts his own assessment but as one who submits himself to the righteous judgment of God: "Judge me, O LORD my God, according to Your righteousness" (Ps. 35:24). The Hebrew צֶדֶק (ṣedeq, righteousness) and מִשְׁפָּט (mišpāṭ, judgment) reveal that true justice originates not within fallen humanity but within the holy character of God Himself. As John Calvin repeatedly observed, the Psalms continually humble human pride by directing every appeal away from self-justification and toward the righteous tribunal of God.

2. Scripture consistently teaches that fallen humanity possesses an astonishing capacity for self-deception. "The heart is deceitful above all things" (Jer. 17:9), while the Apostle Paul declares that "all have sinned and fall short of the glory of God" (Rom. 3:23). Left to ourselves, we instinctively excuse our own sins while magnifying the faults of others. Our judgments are often governed by self-love rather than by truth. The Greek κρίσις (krisis, judgment) becomes distorted whenever it proceeds independently of God's revelation. Cornelius Van Til argued that autonomous human reasoning inevitably suppresses the truth because it seeks to establish itself as the final standard of interpretation. Consequently, only divine revelation restores the proper foundation for moral discernment.

3. Psalm 35 illustrates this theological principle with remarkable clarity. David neither seeks personal vengeance nor entrusts ultimate justice to human institutions alone. Instead, he repeatedly places his cause before the covenant Lord, crying, "Contend, O LORD, with those who contend with me" (Ps. 35:1). The Hebrew verb רִיב (rîb) portrays God as the covenant advocate who legally defends His servant. David's confidence rests not in personal retaliation but in the certainty that the Lord Himself governs history with perfect righteousness. Divine justice therefore becomes the believer's refuge when human justice proves incomplete or corrupt.

4. This posture of dependence profoundly shapes the doctrine of Christian liberty. Freedom in Scripture is never defined as independence from God but as joyful deliverance from the dominion of sin. Christ proclaims, "If the Son sets you free, you will be free indeed" (John 8:36). The Greek ἐλευθερία (eleutheria, freedom) signifies liberation into covenant obedience rather than unrestricted autonomy. Herman Bavinck insisted that true freedom reaches its highest expression not in self-rule but in loving conformity to the will of God, for humanity flourishes only when restored to its original vocation as God's image-bearer.

5. The believer's greatest conflict therefore lies not primarily against external enemies but against the remaining corruption of the flesh. Scripture identifies this lifelong struggle as the work of sanctification. The Apostle commands believers to "put to death" the deeds of the body through the Holy Spirit (Rom. 8:13). The Greek verb θανατόω (thanatoō) denotes continual mortification rather than occasional resistance. John Owen famously summarized this biblical principle by warning believers to "be killing sin, or sin will be killing you." Mortification is thus not the destruction of human personality but the Spirit-empowered weakening of sin's dominion so that Christ's life may increasingly govern the whole person.