There are probably a number of different words, but offering and tithing come to mind.
A collection plate, or collecting plate.
Usher
A church directory is usually a collection of names, addresses and pictures of the members of a particular parish. Also called a Church Pictorial Directory. It can also be a collective listing of individual churches within a particular synod.
church
At collection of stamps is refered to as a stamp collection. They are frequently kept in albums. Philately is the name for the study and collection of stamps.
A diocese means a collection of churches that exist in the same geographical region. It is headed by a bishop. The main church is called the Cathedral because it has the bishop's chair in it (called the Catherda) \
church
a collection of fish is called a school of fish
Collection of coins is called collection of cons only n there is no specific word for it. It is different from numismatics as numismatics is the systematic study of coins. Mere collection of coins cannot be called as numismatics.
Web page collection called a Website.
The possessive form of the singular noun church is church's.example: We took up a collection to repair the church's roof.
The noun 'collection' is a collective noun in 'a collection of teddybears'.