Congregant (noun)

1. A person who attends a religious assembly or service.
2. A member of a religious congregation.

Origin:

Late 16th century: from latin congregant- 'coming together', from the verb congregare, from con- 'together' + gregare 'gather'.

Examples:

1. The church was filled with hundreds of congregants, who had gathered to hear the sermon.
2. The rabbi greeted the congregants as they entered the synagogue.
3. The congregants joined in singing hymns.
4. The young girl was excited to be a part of the congregation and to make new friends.
5. The congregants listened intently as the priest delivered his homily.