There is no such status in the church.
All of us are called and commissioned to GO AND MAKE DISCIPLES.
The tankers do have a pretty tranquil resting place and, sometimes, our congregations provide beauty and peace - sanctuary, as they should. But only for a time.
There is work to do and challenges to be met and "no rest for the wicked".
The tranquillity serves to build up and equip, but, once recharged, it's all hands on deck.
No one is surplus to requirement.