Why has Confucianism been defined as a humanistic philosophy rather then a supernatural religion?

Confucianism is often regarded as a humanistic philosophy because it emphasizes ethical principles, social harmony, and the importance of human relationships, rather than focusing on supernatural beliefs or deities. Its teachings prioritize moral conduct, civic responsibility, and the cultivation of virtue in individuals to create a harmonious society. Additionally, Confucianism does not promote a specific theology or worship practices, which distinguishes it from traditional religions that center around divine entities and rituals. Instead, it encourages individuals to develop their character and fulfill their roles within their families and communities.