"It is important for those in the congregation to appreciate why this congregation committee exists
May I clarify what is being referred to here.
At the time i.e, 1966, before the elder arrangement was introduced, each congregation had a stipulated number of “servants”, the most senior forming a three-man “Service committee”. They were the congregation servant (the boss), the assistant congregation servant and the bible study servant.
This is the committee that the 66WT is referring to.
Invariably these three men would form a judicial committee as required.