For one dozen years, the Rev. John McKnight dutifully served as a chaplain at Oconee Medical Center, helping to bring spiritual relief to those in physical discomfort. And, for service as the longest-serving hospital chaplain, the Oconee Chaplains Association honored McKnight during a ceremony yesterday at the hospital. The Rev. Mark Nelson, association president, said McKnight is highly-deserving of praise for his hands-on approach in his chaplain duties.