[Cal]

Groves' letter is a tough read. But here is a crucial passage (edited):

The moment the witnessing for the common life as our bond gives place to a witnessing against errors by separation of persons and preaching ... and all their conduct and principles have first to be examined and approved before they can be received; and the position which this occupying the seat of judgment will place you in will be this: the most narrow-minded and bigoted will rule, because his conscience cannot and will not give way, and therefore the more enlarged heart must yield.

It is into this position, dear D—, I feel some little flocks are fast tending, if they have not already attained it, making light not life the measure of communion.