The BIG Aim of the Gospel: Guiding Kids from Doubt to Belief

“Do you know where you’re going?”

That question once startled Thomas Huxley, a famous British agnostic, as he raced through town in a horse-drawn carriage. He had confidently told the driver, “Drive fast,” assuming he knew where to go. A few minutes later, realizing they were heading the wrong way, Huxley asked, “Do you know where you’re going?” The driver replied, “No, sir—but I’m driving very fast!”

It’s a funny story—but it reflects a real challenge for parents and children’s ministry leaders. We can be busy, fast-moving, even passionate—but if we don’t pause to ask where we’re leading the children in our lives, we may be sprinting in the wrong direction.

That’s why John 20:30-31 is such a helpful anchor. John tells us exactly why he wrote his Gospel:

“But these are written so that you may believe that Jesus is the Messiah, the Son of God, and that by believing you may have life in his name.”

This is the aim of the Gospel. And it’s the aim of parenting and ministry, too:
To help the next generation believe in and worship the risen Savior, Jesus Christ.

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From Doubt to Belief — Thomas’ Story and Ours

John illustrates his purpose through the story of Thomas, the disciple who famously doubted the resurrection. While the others had seen Jesus alive, Thomas missed that moment. His reaction? “Unless I see the mark of the nails in His hands… I will never believe” (John 20:25).

But a week later—again, on a Sunday—Jesus comes back and meets Thomas right where he is. He doesn’t scold or shame him. Instead, Jesus lovingly says, “Put your finger here… Don’t be faithless, but believe.”

Thomas responds with one of the clearest confessions in all of Scripture: “My Lord and my God!”

As ministry leaders and parents, this is the journey we’re helping kids take—from curiosity to conviction, from questions to worship. We want them to move from knowing about Jesus to declaring, “My Lord and my God!”

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Jesus Welcomes Kids’ Questions and Doubts

Too often, we treat doubt as the enemy of faith. But the story of Thomas tells a different story—one that’s deeply relevant to kids and preteens who are beginning to ask harder questions about God, the Bible, and the world.

Jesus doesn’t push Thomas away for doubting. He draws him close and gives him a clear path to belief. That should shape how we respond when the children in our care say things like:

• “How do I know Jesus is real?”
• “Why did God let that happen?”
• “I want to believe, but I’m not sure.”

Jesus is not afraid of those questions—and neither should we be. In fact, He often uses those moments to reveal His truth more deeply.

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What This Story Teaches Us as Leaders and Parents

• God reveals Himself in His perfect timing. Like with Moses, Elijah, and Thomas, He meets people exactly when and where they need Him.
• Jesus knows our words and thoughts. He repeats Thomas’ own words to him—not to shame, but to invite.
• Our job isn’t to have all the answers—it’s to keep pointing kids to the One who does.

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What This Story Teaches Us About Kids

• Kids (and adults!) can miss life-changing moments when they’re not present. Thomas missed Jesus’ appearance because he wasn’t with the others. This highlights the importance of showing up: to church, small group, family devotion, or that bedtime prayer moment.
• When kids do encounter the truth of Jesus, they’ll either respond with faith or continue in unbelief. Our calling is to lovingly guide them toward trust in Jesus—even when they don’t yet “see” clearly.
• Kids are blessed when they believe—even without seeing. Jesus said, “Blessed are those who have not seen and yet believe.” That’s the kind of faith we’re cultivating.

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So What’s Our Response?

Parents and leaders—don’t drive fast without knowing the direction. Fix your eyes on Jesus, and help your kids do the same.

This week, as you teach, correct, disciple, and pray for the children in your care, remember Jesus’ words to Thomas:

“Don’t be faithless, but believe.”

Encourage kids to bring their questions and doubts. Invite them to draw near to Jesus. And remind them: the aim of the Gospel isn’t just to behave better or know more—it’s to believe in and worship the risen Savior, Jesus Christ.

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Who Needs to Hear This?

Is there a volunteer in your ministry who’s discouraged? A child who’s been asking tough questions? A parent you know who’s worried their child is drifting spiritually?

Send them this encouragement. Their child’s Thomas moment might be just around the corner—and Jesus is ready to meet them there.