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The Power of Testimony

Apocalipse 12:11

Preached by:Pr Boris Carvalho
Preached on:May 31, 2026

WEEKLY DEVOTIONAL


The Power of Testimony


Monday to Friday | Key text, reflection, practical application, and prayer


Theme of the week: Witnessing is not complicating the Gospel. It is sharing, with simplicity and faith, what Jesus has done, is doing, and will still do. Testimony strengthens the church, confronts lies, awakens faith, and glorifies the name of the Lord.




MONDAY — Testimony is Telling the Works of God


Key Text

Revelation 12:11 — "They overcame him by the blood of the Lamb and by the word of their testimony..."

Reflection

Many people think testimony must be something huge, dramatic, or perfect. But to witness is simply to tell the works of Jesus. It’s saying, “I was like this, but Christ found me”; “I was lost, but He established me”; “I’m still in process, but God is still working in me.” Testimony does not start with eloquence, it starts with gratitude. When the church learns to share what God has done, it stops living quietly and starts declaring the victory of the Lamb. The enemy tries to use shame, fear, and accusation to silence our story. But what God has healed in you can become a tool for healing for someone else.


Practical Application

Take a few minutes today to write down three things God has done in your life. Then, choose someone and share at least one of them simply, without exaggeration and without shame.


Prayer

Lord, open my eyes to recognize Your works in my life. Remove from me shame, fear, and spiritual shyness. May my mouth not remain silent before what You have done. Use my story to strengthen the faith of others. In Jesus' name, amen.




TUESDAY — Testimony Awakens Faith in Others


Key Text

Romans 10:17 — "Faith comes by hearing, and hearing by the word of Christ."

Reflection

Faith is awakened when someone hears the Word and perceives that God is still at work. Many people don’t need a complicated speech; they need to hear a real story of transformation. The Samaritan woman did not go out delivering a theology class. She simply said she had found the Messiah, and a city was impacted. The healed blind man also could not explain every detail, but he knew one thing: he was blind, and now he could see. Testimony has this power: it takes a personal experience and transforms it into an invitation for others to believe. When you share what God has done, someone may think, “Then there is hope for me too.”


Practical Application

Today, turn a common conversation into a spiritual opportunity. At work, at home, in your group, or through messages, tell something God has done for you and connect it to the goodness of Christ.


Prayer

Father, may my life be a bridge for others to believe. Place people in my path who need to hear about Your faithfulness. Give me sensitivity to speak at the right moment, with love, truth, and simplicity. May faith be born in the heart of those who hear me. In Jesus' name, amen.




WEDNESDAY — God Puts a New Song in Our Lips


Key Text

Psalm 40:1-3 — "He brought me up out of the horrible pit... and put a new song in my mouth..."

Reflection

David describes a powerful experience: he was in a place of mud, instability, and destruction, but God brought him out, set his feet upon the rock, and put a new song in his mouth. This is testimony. It’s not pretending that there was never any mud. It’s declaring that the mud did not have the final word. God does not just lift us from difficult places; He changes the language of our mouths. Those who are established on the Rock cannot live speaking only of defeat, fear, and complaints. The mouth reveals what is full in the heart. If the heart is full of God, the lips start releasing gratitude, praise, faith, and hope.


Practical Application

Pay attention to your words today. Every time you notice complaining or unbelief, stop and declare a truth: “God is faithful,” “He upholds me,” “He is still working.”


Prayer

Lord, put a new song in my lips. Change the language of my heart. May I not live chained to the mud from which You have already rescued me. Firm my steps upon the Rock and make my life a living testimony of Your grace. In Jesus' name, amen.




THURSDAY — What Fills the Heart Overflows from the Mouth


Key Text

Luke 6:45 — "The mouth speaks what the heart is full of."

Reflection

Our words reveal our inner self. If the heart is full of fear, the mouth releases fear. If it is full of criticism, it releases criticism. If it is full of Jesus, it releases testimony. The problem for many Christians is not a lack of story with God; it’s a lack of attention to what God has already done. The mind gets occupied with worries, comparisons, and pressures, and the heart forgets the works of the Lord. To witness demands an internal exchange: moving from murmuring to gratitude; moving from shame to faith; moving from silence to proclamation. A mouth full of God does not need to force spirituality. It naturally speaks of what the heart has learned to contemplate.


Practical Application

Do some practical cleaning today: reduce a source of distraction or negativity and use this time to remember, jot down, or give thanks for a deed of God.


Prayer

Holy Spirit, fill my heart with the truth of Christ. Remove from me empty words, complaints, and unbelief. May my mouth reveal a heart full of Your presence. Teach me to speak life, faith, and testimony. In Jesus' name, amen.




FRIDAY — Witnesses Sent by God


Key Text

Mark 16:15 — "Go into all the world and preach the Gospel to all creation."

Reflection

The call to witness is not exclusive to pastors, leaders, or those with many years in church. It is the call of every disciple. Jesus said “go,” and this sending happens in everyday life: at home, at work, at school, in the street, in small groups, in simple conversations. God didn’t save you to be kept wrapped up inside a spiritual garage. He called you, changed your identity, and gave purpose to your life. Testimony does not have to wait for a pulpit. Sometimes it happens in a phone call, over coffee, during a ride, in a message, or in an apparently common conversation. The question is direct: will you keep your story to yourself, or will you allow God to use your life to reach others?


Practical Application

Choose a concrete action: record an audio, send a message, post something wisely, or talk personally with someone sharing a testimony of God in your life.


Prayer

Lord Jesus, I make myself available. Use my life, my home, my words, and my story. Give me courage to witness and love to reach people. May I not hide Your works, but announce with faith what You have done, are doing, and will still do. In Jesus' name, amen.