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Bible Truth Foundations

Part 3 of 3: Serving in Christ


The Proper Use of God's Law

Lesson 8 of 16  |  Section C: Living Free from Law and Sin

Opening Question

Please begin by answering this question honestly in your own words.

Have you ever tried to earn a clear conscience by simply "being good enough"? How did that attempt end?

Key Scripture

Romans 3:20

Therefore by the deeds of the law no flesh will be justified in His sight, for by the law is the knowledge of sin.

Read this slowly before moving on. Notice what the Law is said to produce here: knowledge, not righteousness.

Core Truth

The central idea of this lesson

God’s Law was never given as a path to righteousness; it was given to reveal sin and expose the need for a Saviour.

A conscience for everyone

Every person carries an innate moral conscience through which God speaks to human accountability, even apart from the written Law.

Romans 2:14-15

For when Gentiles, who do not have the law, by nature do the things in the law, these, although not having the law, are a law to themselves, who show the work of the law written in their hearts.

The Law’s true standard

The Ten Commandments expose the true standard of God’s holiness. Jesus intensified this by tracing commandments like murder and adultery back to the heart itself.

Matthew 5:21-22

You have heard that it was said to those of old, "You shall not murder... But I say to you that whoever is angry with his brother without a cause shall be in danger of the judgment."

Diagnostic, not curative

By the law is the knowledge of sin. The Law’s function is diagnostic, showing what is wrong; it was never designed to solve it.

James 2:10

For whoever shall keep the whole law, and yet stumble in one point, he is guilty of all.

No one can achieve salvation through partial or even near-total obedience. The Law’s standard is all-or-nothing, which is precisely why it cannot save.

Christ, the end of the Law for righteousness

Romans 10:4

For Christ is the end of the law for righteousness to everyone who believes.

The solution the Law itself cannot provide is found in Christ. His righteousness is given as a free gift, not earned by performance.

Going Deeper

The Law functioned as a tutor to bring us to Christ (Galatians 3:24). Understanding this matters for evangelism: no one is without some sense of moral accountability to answer for, which is precisely what makes the Gospel’s offer of Christ’s righteousness good news, not merely additional information.

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Question My Answer Group Discussion Notes
Romans 2:14-15 says even those without the written Law have "the work of the law written in their hearts." How have you seen conscience function this way, even in people who don’t profess faith?
James 2:10 says stumbling in one point makes a person "guilty of all." Why does this matter for anyone trying to be "good enough" for God?
What is the difference between the Law’s diagnostic function ("knowledge of sin," Romans 3:20) and a curative one?
Romans 10:4 says "Christ is the end of the law for righteousness." What does that mean for how you pursue righteousness now?

These questions are designed for open conversation at any level of experience. There are no trick questions and no single correct answer.

  1. Why do you think Jesus deliberately raised the Law’s standard to the level of the heart (Matthew 5:21-22, 27-28) rather than lowering it?
  2. Share a time you tried to earn God’s approval through your own effort. What happened?
  3. How does understanding the Law as a "tutor" (Galatians 3:24) rather than a ladder change how you read the Old Testament?
  4. What is the risk of a Christian who has received grace but still, unconsciously, tries to maintain it through law-keeping?

The Law’s job was always to reveal, not to rescue. Let it do that work this week, then bring what it reveals to Christ.

Context How I Apply This
Personal life Watch for any moment you catch yourself trying to "earn" a clear conscience through performance rather than resting in Christ’s righteousness.
Church community Read one of the Ten Commandments (Exodus 20:3-17) and let it show you, honestly, where you fall short, then bring that immediately to Christ, not to self-improvement.
Difficult seasons When guilt resurfaces over old failure, meditate on 2 Corinthians 5:21 as your identity, not your effort.
Scripture to carry Memorise Romans 3:20: "By the deeds of the law no flesh will be justified in His sight, for by the law is the knowledge of sin." Let it dismantle any remaining reliance on self-effort for right standing with God.

Tap each card to reveal the answer.

What is the Law’s actual function, according to Romans 3:20?

"By the deeds of the law no flesh will be justified in His sight, for by the law is the knowledge of sin."

Romans 3:20

What happens if someone keeps the whole Law but stumbles in one point?

James 2:10

"For whoever shall keep the whole law, and yet stumble in one point, he is guilty of all."

James 2:10

What did Jesus say about murder and the heart?

Matthew 5:21-22

Jesus taught that anger in the heart carries the same root guilt as the act of murder, tracing the Law’s standard to the heart, not just outward action.

What role did the Law play, according to Galatians?

Galatians 3:24

"The law was our tutor to bring us to Christ, that we might be justified by faith."

Galatians 3:24

Who is the "end of the law for righteousness"?

Romans 10:4

"For Christ is the end of the law for righteousness to everyone who believes."

Romans 10:4

What does Christ’s righteousness bring, according to Romans 5:1?

"Therefore, having been justified by faith, we have peace with God through our Lord Jesus Christ."

Romans 5:1

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