Here is a blessing that I wrote for the conclusion of ministry of a colleague in another presbytery.

May the blessing of work unfinished be yours.
Be content that it was not all yours to complete.

May the blessing of unfulfilled goals be yours.
Be content that others also need to seek their dreams.

May the blessing of unsolved problems be yours.
Be content that those most worthy are most wicked.

May the blessing of frayed relationships be yours.
Be content that they and you may heal and grow.

May the blessing of an anxious heart be yours.
Be content that the strength of your desire marks the fullness of your hope.

May the blessing of exhaustion be yours.
Be content that your energy has been expended with faithfulness and courage.

May the blessing of unrecognised service be yours.
Be content that the Giver sees your giving with gladness.

Amen.

Craig Mitchell