How to write your testimony

One of the most effective tools you have for sharing your faith is the story of how Jesus Christ gave you eternal life and how He has enriched your life. The Apostle John wrote, "We proclaim to you what we have seen and heard" (1 Jn. 1:3), testifying about his relationship to Jesus Christ.

…always being prepared to make a defense to anyone who asks you for a reason for the hope that is in you; yet do it with gentleness and respect, 1 Peter 3:15-16

Stick to the point. Your conversion and new life in Christ should be the main points.
Be specific. Include events, genuine feelings, and personal insights that clarify your main point. ...
Be current. Tell what's happening in your life with God right now, today.
Be honest. Don't exaggerate or dramatize your story. The simple, straightforward truth of what God has done in your life is all the Holy Spirit needs to convict others and convince them of God's love and grace.

1 - Realize Your Testimony Is Powerful.

We overcome our enemy by the blood of the lamb and the word of our testimony (Rev 12:10-11)

2 - Study an Example in the Bible.

Read Acts 26. Here the Apostle Paul gives his personal testimony before King Agrippa.

3 - Spend Time in Preparation and Prayer.

Think about your life before you met the Lord. What was going on in your life leading up to your conversion? What problems or needs were you facing at the time? How did your life change after knowing Jesus Christ? Pray and ask God to help you share what he wants you to include.

4 - Use a 3-Point Outline.

Life before Jesus.

Simply tell what your life was like before you surrendered to Christ. What were you searching for before coming to know Christ? What was the chief problem, emotion, situation, or attitude you were dealing with? What motivated you to seek a change? What were your actions and thoughts at the time? How did you try to satisfy your inner needs? (Examples of inner needs are loneliness, fear of death, insecurity, etc. Possible ways to fill those needs include work, money, drugs, relationships, sports, sex.) Remember to use concrete, relatable examples.

What about my life before Christ will relate most to the non-Christians I know?
What did my life revolve around? Where did I get my security, identity or happiness from?
How did those things begin to let me down?

Life with Jesus.

How did you come to salvation in Jesus? Simply tell the events and circumstances that caused you to consider Christ as the solution to your searching. Take time to identify the steps that brought you to the point of trusting Christ. Where were you? What was happening at the time? What people or problems influenced your decision?

When was the first time I heard the gospel? What were my initial reactions?
When and why did my perspective of Christ begin to change?
What were the final struggles that went through my mind just before I accepted Him? Why did I finally decide to accept Christ (or give Him complete control of my life)?

Life after Jesus.

How has your life in Christ made a difference? How has his forgiveness impacted you? How have your thoughts, attitudes, and emotions changed? Share how Christ is meeting your needs and what your relationship with him means to you now.

How is my life different now? List some specific changes in your character, attitude and perspective on life.
What motivates me now? What do I live for?
Even though my life still isn’t perfect, how does knowing Christ help me deal with that fact?

5 - Words to Avoid.

"born again." "saved." "lost." "gospel." "sin." "repent."

Sourced from:

https://www.cslewisinstitute.org/webfm_send/334

https://www.learnreligions.com/how-to-write-your-christian-testimony-701445