Romans 3:20

Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin.

Romans 3:20 (KJV)

Context

Paul writes to believers in Rome to explain the gospel and the righteousness of God. In the verses just before this one, he has shown that both Jews and Gentiles are under sin and accountable to God. The word “therefore” at the start of this verse draws a conclusion from that argument: the law stops every mouth and makes the whole world guilty before God (Romans 3:19).

Meaning

The phrase “deeds of the law” refers to works done in obedience to the commandments and requirements found in the Old Testament. Paul’s point is direct: no one can be justified, or declared righteous, before God by simply obeying the law. Human effort, however sincere, cannot earn a right standing with God.

The second half of the verse explains the positive purpose of the law: “for by the law is the knowledge of sin.” The law does not save; it brings the knowledge of sin. It reveals sin for what it is and makes people conscious of their guilt. The Greek word for “knowledge” (epignosis) suggests a full or precise knowledge, not merely a surface awareness. The law’s role is diagnostic, not curative. It exposes the disease of sin but cannot heal it.

Application

This verse highlights a vital theological principle: human efforts to earn salvation through adherence to the law are insufficient. The law serves as a mirror, showing us our sin and our need for a Savior. When we read the law honestly, we see our inability to keep it perfectly and are driven to depend on God’s grace rather than our own performance.

Reflection

Understanding the law’s purpose helps us grasp the gospel more fully. The law is not our enemy; it is the tutor that leads us to Christ. As you consider this verse, let it deepen your gratitude for the righteousness that comes through faith in Jesus, not through your own works.