The author is informing the Acolyte that although his service to their cause has been appreciated over the number of years he has been with them, they will be no longer be needed, and that they will have to leave. The writer does not appear to be in any way rude in this letter, and says that they regret having to tell them this, and that they hope it does not sway their faith, or upset their memories of the place that they had called home.