REPENTANCE AND FORSAKING SIN
A Foundational Teaching for New Believers
Discipleship and Christian Education Programme
Theme: Turning Away from Sin and Walking in Righteousness
Key Scripture: Proverbs 28:13 (KJV)
“He that covereth his sins shall not prosper: but whoso confesseth and forsaketh them shall have mercy.”
1. INTRODUCTION
Repentance is one of the most important foundations of the Christian faith. When a person receives Jesus Christ as Lord and Saviour, that person is called to turn away from the old life of sin and begin a new life of obedience to God.
Becoming a Christian is not simply about attending church, reading the Bible, or identifying oneself as a believer. It involves a genuine change of heart, attitude, direction and lifestyle.
God does not call us merely to regret our sins; He calls us to repent of them.
Repentance means recognising that we have sinned against God, being genuinely sorry for our sins, confessing them, turning away from them, and choosing to live according to God’s Word.
2 Corinthians 5:17 teaches that anyone who is in Christ is a new creation. The old has passed away, and the new has come.
2. WHAT IS REPENTANCE?
Repentance is a sincere change of mind and heart that produces a change in direction and behaviour.
It involves three important things:
* Recognising that our actions, thoughts, and attitudes are sinful.
* Feeling genuine sorrow for offending God.
* Making a deliberate decision to turn away from sin and obey God.
Acts 3:19 (KJV)
“Repent ye therefore, and be converted, that your sins may be blotted out.”
Repentance is not simply making promises to become a better person. It is responding to God’s conviction and allowing His grace to transform our lives.
3. WHY MUST A BELIEVER REPENT?
There are several reasons every believer must understand the importance of repentance.
A. Because all human beings have sinned
Romans 3:23 teaches that all have sinned and come short of the glory of God.
No one can claim to be righteous through personal effort. We all need God’s forgiveness.
B. Because sin separates humanity from God
Isaiah 59:2 explains how sin creates separation between people and God.
C. Because God commands everyone to repent
Acts 17:30 declares that God commands all people everywhere to repent.
D. Because repentance brings forgiveness
1 John 1:9 teaches that when we confess our sins, God is faithful and just to forgive us and cleanse us from all unrighteousness.
E. Because repentance produces spiritual transformation
True repentance leads us away from sinful practices and towards a life that pleases God.
4. THE DIFFERENCE BETWEEN REGRET AND REPENTANCE
Not everyone who regrets doing something wrong has genuinely repented.
Regret is feeling bad about the consequences of an action, while repentance involves turning away from the wrongdoing itself.
Consider Judas and Peter.
* Judas regretted his betrayal of Jesus but did not return to Christ in repentance (Matthew 27:3–5).
* Peter denied Jesus but later experienced restoration and recommissioning (John 21:15–17).
The lesson is that genuine repentance brings us back to God rather than driving us further away from Him.
5. THE IMPORTANCE OF CONFESSING OUR SINS
Confession means honestly acknowledging our sins before God without making excuses or blaming others.
1 John 1:9
“If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.”
A believer must learn to approach God honestly.
We should not hide our sins, justify wrongdoing, or pretend that everything is right when it is not.
God desires truth in our inward parts.
Practical lesson: When you sin, do not run away from God. Come to Him, confess your sin, receive His forgiveness, and seek His help to walk in obedience.
6. REPENTANCE MUST BE FOLLOWED BY A CHANGE OF LIFE
True repentance produces visible evidence.
Matthew 3:8: “Bring forth therefore fruits meet for repentance.”
Some examples include:
* A dishonest person begins to practise honesty.
* A person who constantly insults others begins to speak with love and respect.
* Someone living in sexual immorality chooses sexual purity.
* A person who steals stops stealing and begins to work honestly.
* Someone who holds bitterness begins to pursue forgiveness.
* A person who practises hatred learns to walk in love.
We are not saved by good works, but genuine salvation produces good works.
See Ephesians 2:8–10.
7. HOW CAN A NEW BELIEVER OVERCOME SIN?
A new believer must understand that Christian life involves daily dependence on God’s grace.
Here are seven important principles:
1. Study the Word of God
Psalm 119:11 teaches that hiding God’s Word in our hearts helps us avoid sin.
2. Maintain a consistent prayer life
Matthew 26:41 teaches believers to watch and pray so that they do not enter into temptation.
3. Depend on the Holy Spirit
Galatians 5:16 teaches us to walk in the Spirit rather than fulfil the desires of the flesh.
4. Avoid sinful environments
1 Corinthians 15:33 warns that bad company corrupts good character.
5. Choose godly friendships
Proverbs 13:20 teaches the importance of walking with wise people.
6. Confess and forsake sinful habits
Proverbs 28:13 reminds us that those who confess and forsake their sins will receive mercy.
7. Keep your eyes on Jesus
Hebrews 12:2 encourages believers to look unto Jesus, the author and finisher of our faith.
8. BIBLICAL EXAMPLES OF REPENTANCE
A. The Prodigal Son — Luke 15:11–24
The prodigal son recognised his sinful condition, acknowledged his wrongdoing, and returned to his father.
Lesson: No matter how far someone has wandered, they can return to God through genuine repentance.
B. King David — Psalm 51
After committing serious sins, David acknowledged his wrongdoing and cried out to God for mercy and cleansing.
Lesson: Never allow pride to prevent you from admitting your sins before God.
C. The People of Nineveh — Jonah 3:1–10
When the people of Nineveh heard God’s warning, they humbled themselves and turned from their evil ways.
Lesson: Genuine repentance involves a change of conduct.
D. Zacchaeus — Luke 19:1–10
After encountering Jesus, Zacchaeus demonstrated a changed attitude towards money and those he had wronged.
Lesson: A genuine encounter with Christ should affect how we treat other people.
9. COMMON MISTAKES NEW BELIEVERS MUST AVOID
* Thinking that God’s grace gives permission to continue sinning.
* Hiding sinful behaviour instead of confessing it.
* Blaming other people for personal wrongdoing.
* Believing that repentance is unnecessary after becoming a Christian.
* Returning deliberately to sinful habits.
* Allowing guilt to prevent them from receiving God’s forgiveness.
* Depending entirely on personal strength instead of the Holy Spirit.
Romans 6:1–2 teaches that we must not continue in sin so that grace may abound.
10. PRACTICAL APPLICATION
Every new believer should examine their life regularly.
Ask yourself:
* Are there sinful habits I need to abandon?
* Am I honest in my dealings with people?
* Do I harbour bitterness or unforgiveness?
* Are my conversations pleasing to God?
* Do I deliberately expose myself to temptation?
* Am I willing to obey God’s Word even when it is difficult?
Remember that spiritual growth involves daily surrender to Jesus Christ.
11. MEMORY VERSES
* Acts 3:19 — Repent and be converted.
* 1 John 1:9 — Confess your sins and receive forgiveness.
* Proverbs 28:13 — Confess and forsake sin.
* Romans 6:1–2 — Do not continue in sin.
* Matthew 3:8 — Produce fruits worthy of repentance.
12. DISCUSSION QUESTIONS
* What is biblical repentance?
* What is the difference between regret and genuine repentance?
* Why does God command everyone to repent?
* Can someone genuinely repent without changing their behaviour?
* What lessons can we learn from the prodigal son?
* How does the Holy Spirit help believers overcome sin?
* What should a Christian do after falling into sin?
* What practical steps can help you avoid temptation?
13. CONCLUSION
Repentance is not merely an experience that takes place when someone first becomes a Christian. It is an essential part of living a life of obedience to God.
A believer must continually maintain a humble and teachable heart, remaining willing to acknowledge wrongdoing, receive God’s forgiveness, and make necessary changes.
Never allow sin to become normal in your Christian life. Do not defend what God condemns or deliberately return to what Christ has delivered you from.
Remember, God’s grace does not encourage us to remain in sin; it empowers us to live righteously.
Titus 2:11–12 teaches that the grace of God trains us to deny ungodliness and worldly desires and to live soberly, righteously, and godly.
14. CLOSING PRAYER
Heavenly Father,
I thank You for Your mercy, love, and forgiveness. I acknowledge that I need Your grace every day.
Forgive me for every sin I have committed in thought, word, and action. Cleanse my heart and renew my spirit.
Deliver me from every sinful habit, ungodly attitude, and destructive behaviour. Give me the strength to turn away from everything that displeases You.
Holy Spirit, help me to walk in holiness, righteousness, and obedience. Give me a hatred for sin and a genuine love for Your Word.
May my life produce fruits worthy of repentance. Help me to become a faithful disciple of Jesus Christ.
In Jesus’ mighty name. Amen.
