“Sincere” Of particular note, a “religious corporation, association, educational institution, or society” is defined as a corporation, association, educational institution, society, school, college, university, or institution of learning that meets the following four requirements: (1) is organized for a religious purpose; (2) holds itself out to the public as carrying out a religious purpose; (3) engages in activity consistent with, and in furtherance of, that religious purpose; and (4) operates on a not-for-profit basis or presents other strong evidence that its purpose is substantially religious. The fourth prong shows that there “may be rare situations. . . where an organization is legally constituted as a for-profit enterprise yet infused with religious purpose.”