You will need 3 volunteers. Each of these volunteers will either be: the Body, the Soul, or the Spirit. The person who is chosen to be the “Soul” will be in-between the “Body” and the “Spirit.”
Explain that the “Soul” contains our mind, will, and emotions. Continue to tell them that our “Soul” can either go with what the “Body” wants (worldy things) or want what the “Spirit” wants. Tell them that often times, many of us want to do what the “Body” wants and do what the “Spirit” wants. Explain to them that they’ve got to make the decision to pick either one.
A good passage to go along with this would be James 1:8 (you might want to read this verse in context for better understanding) which tells us that a double-minded person doesn’t receive anything from God