muslim
he was educated by i have no clue group
Going by IQ statistics, Guinea-Bissau and Ethiopia would have the least educated citizens because their average IQ is 63.
A religious group can be called a sect. A religious group can also be called a congregation when all attend the same church. A religious group might have more than one sect, or group of individuals, like the Amish.
religious weird brave educated sacrificial
Pharisee
Intelligentsia
Another word for religious group could be "faith community" or "religious organization."
Jews. Note that Christians and Moslems (at least some) believe that they have supplanted the Jews in that role.
A group of religious people is often referred to as a congregation, parish, assembly, or community.
DNA !... You're linked to your ethnic group - by DNA. What religious group you belong to - is your choice.
Catholics
the religious group were the puritans