confronting a youth minister that brought his children to our child's day out and left owing 4300.00. He owns a horse farm and is now moving out of state.

This subject has been laying very heavy on my heart and feel obligated to contact this gentleman who I feel is taking advantage of our ministry because he is friends with the director of our program. He owes our program over $4300.00 for childcare for his 2 children and has not made a pymt. in over a year and is now moving out of state. It's not like he doesn't have the money. He has a beautiful home, horse farm, horses and all that entails. But is taking advantage not paying us and buying new horses instead. Is it ok to hold him accountable Christian to Christian?