I think the liturgy for today says it all:
"The church of Jesus Christ is constantly changing. Our church is changing as well. Babies are born. Children grow up. People commit themselves to one another. Loved ones and friends die. Newcomers join our community and our church. Others leave, moving on to new places and new opportunities. It is important that we recognize these times of change. Today we say farewell to one who is leaving our fellowship.
"On May 11th, 2003, this congregation called Rev. Jason Carle to serve with us as pastor.
"Today that call comes to an end."
Such grace has abounded in our lives to have brought us to this place. It is hard to leave it, but with Thanksgiving we thank God for the opportunity to have served with these people and to have been a part of their lives.