Foundations · lessons 5
The Need to Choose Christ
The door is open, but you need to walk through it
The invitation that awaits a response
Cláudia received a wedding invitation from a dear friend. She stuck it on the fridge, thought 'I need to RSVP,' and life kept going. Work, kids, exhaustion. By the time she finally remembered, the deadline had passed. The celebration happened — without her. Nobody kept her from going. She simply never responded in time. Many people live that way with God. They heard the invitation, thought it was beautiful, and set it aside for later. But God doesn't force anyone to come in. He invites — and waits for a response.
In previous lessons, we saw truths that change everything: God loves us, sin separates us from Him, and Jesus died in our place. But there is a step that no one can take for you: the decision to accept this gift.
Salvation is free, but it is not automatic. God respects your freedom. He does not barge in — He knocks at the door.
Notice the gentleness of Jesus: He knocks. He doesn't break down the door. He doesn't shout. He doesn't threaten. He knocks and waits. The handle is on the inside — you are the one who opens it.
And what does He promise when you open? Not a list of rules. Not a heavy contract. He promises fellowship: 'I will come in and eat with that person, and they with me.' In biblical culture, sharing a meal with someone was a sign of intimacy and friendship. Jesus is saying: 'I want to be close to you. Let me in.'
Two actions appear here: receive and believe. It is not enough to know that Jesus exists — even the demons know that (James 2:19). To believe, in the Bible, is to trust to the point of surrendering your life. It is like the difference between knowing an airplane can fly and actually boarding it.
And the result? Whoever receives Jesus becomes a child of God. Not an employee, not a distant servant — a child. With direct access to the Father, with a name in the family, with a guaranteed inheritance.
What is repentance? Show
The Greek word for repentance is metanoia, which means 'change of mind.' It is not merely feeling remorse or crying over a mistake. It is a change of direction: the person who was living with their back to God turns around and begins to walk toward Him.
Repentance is not perfection — it is direction. You don't need to fix everything before coming to Christ. You come as you are, and He begins the transformation from the inside out. As Jesus said: 'It is not the healthy who need a doctor, but the sick' (Mark 2:17).
Paul makes it as simple as possible: declare and believe. To declare is to state publicly — it is not a secret. To believe is to trust entirely — it is not mere intellectual agreement. And the result is clear: you will be saved.
It doesn't say 'maybe.' It doesn't say 'if you are good enough.' It says you will be. Salvation is certainty, not vague hope. When you surrender your life to Christ from the heart, something happens in heaven: your name is written in the book of life. Period.
“You can seek strategy and methodology wherever you want, but if you don't bow your knees, shed your tears, and pay the price in prayer, it won't work.”
Stop and think
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1
If Jesus is knocking at the door of your life right now, what is keeping you from opening it?
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2
Is there a difference between 'knowing about Jesus' and 'surrendering your life to Jesus'? Where do you find yourself on that journey?
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3
What does it mean to you to be called a 'child of God'?
For this week
If you have not yet made the decision to surrender your life to Christ, this week is the moment. Talk to your discipler or small group leader — they can pray with you. If you have already made that choice, remember the day and give thanks. Then think of someone in your circle who does not yet know Jesus and pray for that person every day this week. Bring their name to the next small group meeting.
To close
“Lord Jesus, I open the door. I acknowledge that I need You. Forgive my sins and come into my life. I believe that You died for me and rose again. I receive You as my Savior and Lord. From this day forward, I want to walk with You. Thank You for accepting me as I am. In Your name, amen.”
For the discipler
Objective
Lead the disciple to a moment of personal decision for Christ — with clarity, without pressure, explaining what it means to believe and surrender one's life to Jesus.
Difficult questions
- What if I don't feel anything when I accept Jesus? Salvation is a decision, not an emotion. Many people feel emotion, but it is not required. What matters is the decision of the heart and faith in God's promise. Feelings may come later — or not. Faith does not depend on feeling (Hebrews 11:1).
- Can I lose my salvation? The Bible teaches that whoever is in Christ's hands is secure (John 10:28-29). At the same time, it teaches that we must persevere in faith (Philippians 2:12). The balanced position of the AD is: God guards, but the person has responsibility to remain in Christ.
- What about someone who accepts Jesus but keeps sinning? Conversion does not eliminate temptation overnight. What changes is direction: before, the person lived in sin without discomfort; now, the Holy Spirit convicts and leads them to repentance. Sanctification is a process, not an event (Philippians 1:6).
- Do I have to accept Jesus in a church, in front of everyone? Not necessarily. The decision is of the heart. But public confession (Romans 10:9) is important. It can be in a small group, in a conversation with a discipler, or in a worship service. The important thing is that it doesn't remain only in the mind — it needs to be declared.
Practical tips
- This may be the most important lesson of the course. If someone has not yet accepted Jesus, this is the moment. Be prepared to pray with the person.
- Don't force it. The Holy Spirit convicts — the discipler invites. If someone is not ready, respect that and say: 'Whenever you're ready, I'll be here.'
- Have the prayer of surrender ready, but leave room for the person to pray in their own words. A heartfelt prayer, even with simple words, is worth more than a memorized formula.
- If someone accepted Jesus before but drifted away, treat them with warmth — not demands. The prodigal son came back and was received with a celebration (Luke 15:22-24).
- Record the decision. The moment of conversion is a pastoral milestone. Note the date and communicate it to the coordinator.
Extra material
- Video: What does it mean to be born again? — Bible Project
- Leitura: Born Again — What it really means, chapter 1 — John Piper (summary)