As a ministry leader, what are you trying to instill in your team and/or your volunteers? Is it a love for children and students? A commitment to equipping parents? Is it generosity, or faithfulness, or joy, or a solid work ethic?
Andy Stanley speaks about the concept of moral authority—when someone has influence over you but not necessarily authority over you, that person has moral authority. It’s entirely possible (probable, even) that you have authority over those you lead—whether that’s your ministry team or your volunteer leaders. But if you don’t have moral authority, your influence is lost.
If you want to develop the characteristics above (love, commitment, generosity, etc.) in the people you lead, you must have developed it within yourself. You can’t expect these qualities to permeate your ministry if you haven’t allowed them to permeate your own heart.