What are some signs which show that the priestly account has its origins with priests and temple schools?

The priestly account in the Hebrew Bible displays several signs indicating its origins with priests and temple schools. First, it emphasizes ritual laws, genealogies, and cultic practices, reflecting the concerns of priestly authorities. Additionally, the meticulous attention to details regarding the tabernacle, sacrifices, and priestly duties suggests a professional background exclusive to temple functionaries. Finally, the use of specific vocabulary and theological themes, such as holiness and covenant, aligns with the interests and teachings of priestly communities.