When Faith Comes Alive | How to Know You Have Eternal Life | 1 John 5 Sermon

How can you know that you are truly saved? What evidence does a living faith produce? In this sermon, “When Faith Comes Alive,” we study the book of 1 John to discover three biblical signs that the life of God is actively working within a born-again Christian.

Beginning with the history of Camp Toccoa, Currahee Mountain, and the World War II paratroopers, this message illustrates a powerful spiritual truth: life leaves evidence. Just as a living town, a living person, or a newborn child displays unmistakable signs of life, genuine faith in Jesus Christ produces visible spiritual evidence.

Jesus told Nicodemus in John 3:3, “You must be born again.” The new birth is not the result of religious performance, good works, church attendance, morality, or personal achievement. Salvation is a gift of God’s grace, received through faith in Jesus Christ. However, when God gives new life, that new life begins to transform our love, desires, priorities, obedience, relationships, and confidence before God.

This sermon examines three evidences of genuine salvation:

1. New life produces a new love.
According to 1 John 3:14–18, those who have passed from spiritual death into life develop a new love for Jesus Christ, a new love for other Christians, and a sacrificial love shaped by the cross. Biblical love is more than words or emotions. It moves toward people, serves others, meets needs, and reflects the love Jesus demonstrated by laying down His life for us.

2. New life produces new desires.
According to 1 John 2:3–6, knowing Christ creates a growing desire to obey God, imitate Jesus, turn away from sin, and walk as Christ walked. Christians do not obey perfectly, but the Holy Spirit changes what they want. Genuine believers grieve their sin, practice repentance, and increasingly desire God’s will more than the approval, success, wealth, or values of the world.

3. New life produces confidence and assurance.
According to 1 John 5:11–15, eternal life is found in Jesus Christ. Christian assurance is not based on our performance, feelings, morality, or ability to earn God’s approval. Our confidence rests entirely on who Jesus is and what He accomplished through His perfect life, sacrificial death, and resurrection.

This message also explores one of the most reassuring promises in Scripture:

“Whenever our heart condemns us, God is greater than our heart, and He knows everything.” — 1 John 3:20

When guilt, fear, doubt, or shame causes your heart to condemn you, your hope is not found in trying harder. Your hope is found in Jesus Christ. God accepts believers on the basis of Christ’s righteousness, not their personal merit.

The central truth of this message is simple:

New birth creates new life, and new life leaves evidence.

Examine your life—not merely your past religious experiences, but your present relationship with Jesus Christ. Do you see a growing love for Christ and His people? Do you desire to obey God and turn from sin? Is your confidence resting in your own performance or in the finished work of Jesus?

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