Who are the people that followed very strict religious rules?

People who followed very strict religious rules often belong to particular religious groups or denominations that emphasize adherence to their doctrines and practices. This includes certain sects within Christianity, Judaism, Islam, and other faiths, such as Hasidic Jews, conservative Muslims, and some evangelical Christians. These individuals typically prioritize religious observance in their daily lives, adhering to guidelines on behavior, dietary restrictions, and rituals. Their commitment can be a reflection of deep faith, tradition, and community identity.