Both Uses

congregation
in
Great Expectations
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I am far from being sure that I might not have astonished our small congregation by resorting to this extreme measure, but for its being Christmas Day and no Sunday.†
p. 23.5 *

congregation = people who worship together in the same building
But he punished the Amens tremendously; and when he gave out the psalm,—always giving the whole verse,—he looked all round the congregation first, as much as to say, "You have heard my friend overhead; oblige me with your opinion of this style!"†
p. 24.1

Definitions:

(1) (congregation as in: the congregation voted)
people who worship together in the same building
(2) (meaning too rare to warrant focus)
Much more rarely, congregation can reference any group of people, animals, or things collected together.