It is a "collective Noun"
congregation
The people attending a church service are called a congregation.
A group of people gathered to hear or see an event or performance is typically referred to as an audience. This term is commonly used in settings such as theaters, concert halls, or lecture halls where individuals come together to watch or listen to a specific presentation.
That depends on which church it is...
The noun for 'people attending a concert' is attendees.The collective noun for people attending a concert is an audience of people.
There are millions! If you mean "Church" as in the building there are millions, if you mean "church" as the people who meet (as some people do consider church as "where two or more are gathered in Jesus name") there must be billions as they meet in homes, school buildings, old cinemas and a variety of other places.
An audience Concert goers
Jesus did not attend a formal church during his time on Earth. Instead, he often preached and taught in various locations, such as synagogues, temples, and open spaces, where people gathered to hear him speak.
Not really,it is better to go to a church where you can have fellowship with others who can give you guidance and moral support in your times of need and you can make friends with people of your own beliefs Jesus says where two or more are gathered in my name there i am in midst of them.
people gathered at this place because this is the place that you can read lots of books and you can get knowledge by reading books on the library.
People at a concert are called several things:crowdaudienceconcertgoersfans
People at a concert are called several things:crowdaudienceconcertgoersfans