The Floating Ball: Keeping in the Spirit's Flow
A ping-pong ball floats in the column of air from a cool hair dryer, giving children and youth a playful picture of keeping in step with the Spirit.
Big Idea
Life by the Spirit means staying responsive to His steady leading, not drifting wherever we please.
Delivery Script
Hook Use this when introducing life by the Spirit, fruit of the Spirit, or daily responsiveness to God's leading. What if staying close to God looked like this?
1. Switch on. [switch the cool hair dryer to its cool setting, pointing it upward] I am going to need you to watch very carefully. Something is about to happen that should not work. But it does.
2. Place the ball. [place the ping-pong ball gently into the air column] There it is. Floating. Not glued. Not tied. Held by something it cannot see.
3. Let it sit. [hold the dryer steady for a few seconds] Look at that. As long as it stays in the flow, it stays up. The moment it drifts out, it has nothing left to hold it.
4. Move and drop. [tilt the dryer slowly so the ball follows, then tilt too far so the ball falls] Did you see that? Move gently, it follows. Move too far out, and it is gone. Just like that.
5. Read the word. [pick up the open Bible and read Galatians 5:25] "If we live by the Spirit, let us also keep in step with the Spirit." Keep in step. That is not casual. That is deliberate. That is responsive.
6. Name the limit. Now, I have to be honest with you. [hold up the dryer briefly, then set it down] This is only a picture. The Holy Spirit is God, not air from a machine. But Paul says if we live by the Spirit, we keep in step with the Spirit. That word, keep in step, means ordered, aligned walking. Not drifting. Not doing whatever we please. Staying responsive.
7. Lift the ball. [pick up the fallen ping-pong ball and hold it up] The Christian life is staying responsive to His leading. The ball on the floor is not a picture of failure, it is a picture of drift. And drift happens quietly, gradually, one small degree at a time.
Land The Spirit is not asking you to perform. He is asking you to stay close, to stay responsive, to keep in step with what He is already doing. Where am I drifting outside the Spirit's leading? That is worth sitting with.
Call to action Choose one daily habit this week, a moment of prayer, a pause before a decision, that helps you stay responsive to the Spirit's leading.
Transitions
In
Use this when introducing life by the Spirit, fruit of the Spirit, or daily responsiveness to God's leading.
Out
Ask, "Where am I drifting outside the Spirit's leading?"
Scripture Anchors
Primary
Supporting
Cross-Testament
Props & Setup
Props Required
- 1Hair dryerMust have cool or low setting and be tested beforehand.
- 2Ping-pong ballUse a lightweight clean ball and keep a spare.
Setup Instructions
- 1Test the ball in the airflow before the service.
- 2Use the coolest setting that keeps the ball afloat.
- 3Check that the cable will not trip anyone.
- 4Prepare to explain that the Spirit is not an impersonal force like air.
Stage Execution
- 1Switch on the cool hair dryer pointing upward.
- 2Place the ping-pong ball carefully into the air column.
- 3Let it float for a few seconds while the children watch.
- 4Move the dryer slightly so the ball follows, then move too far so it drops.
- 5Read Galatians 5:25.
- 6Say, "This is only a picture. The Holy Spirit is God, not air from a machine. But Paul says if we live by the Spirit, we keep in step with the Spirit."
- 7Pick up the fallen ball and add, "The Christian life is staying responsive to His leading."
Safety Notes
Use a cool or low-heat setting and keep the dryer away from hair, clothing, water, and faces. Check volume for sound-sensitive children. Tape down the cable and do not let children handle the dryer.
Theological Grounding
Galatians 5:25 follows Paul's contrast between the works of the flesh and the fruit of the Spirit. The verb translated keep in step carries the sense of ordered, aligned walking. The demonstration works when it shows responsiveness and dependence, not a vague invisible power.
Preacher Tips
- Test the dryer and ball. Some dryers are too hot or too weak.
- Use the phrase 'keep in step' more than 'float'. It fits the verse better.
- Do not let children queue to try the dryer unless you have a controlled science station afterward.
- Name the fruit of the Spirit briefly so the application becomes concrete.
If Things Go Wrong
1The ball will not float.
Recovery: Hold it above the airflow and say, "The picture failed, but the verse still stands: keep in step."
2The dryer is too loud.
Recovery: Switch it off quickly and continue with the ball in your hand.
3The Spirit sounds like a force, not a person.
Recovery: State clearly that the Spirit is God who leads, not air we control.
Adaptations
teens
Use the drop moment to discuss drifting from the Spirit into approval, anger, or appetite.
small group
Read Galatians 5:16-26 and identify what staying in step would change this week.
online
Use a close-up camera angle and a tested setup so the ball remains visible.
intergenerational
Let children watch the ball, then have adults read the fruit of the Spirit aloud.
Response Prompts
1.What does it mean to keep in step with the Spirit?
2.Which fruit of the Spirit needs more room in me?
3.Where do I drift when I stop listening?
Application Questions
- 1Am I asking the Spirit to bless my drift or lead my steps?
- 2What would alignment with Galatians 5 look like today?
Call to Action
Invite hearers to choose one daily habit that helps them stay responsive to the Spirit's leading.
Focus Note
The ball floats because it stays in the stream of air. Move outside that stream and it falls. Galatians 5 is not teaching levitation, and the Spirit is not a machine. Paul is teaching a way of life. Since we live by the Spirit, we are to keep in step with the Spirit, producing fruit rather than following the desires of the flesh.
Cultural Notes
Hair dryers and ping-pong balls may not be common in every setting. Use a paper ball over a small fan, a balloon in gentle airflow, or a simple walking-in-step line instead. Keep technology secondary.
Themes & Tags
Sermon Placement
Memorability
The floating ball has surprise and movement, making it excellent for children and youth.
Type
science demo
Difficulty
moderate
Setup
minimal
Cost
under_10_gbp