What is the difference between "de'oraita" and "de'rabbanan" laws?

The distinction between "de'oraita" and "de'rabbanan" is fundamental in Jewish law. De'oraita refers to laws that originate from the Torah, the Written Law, which is considered divine and binding. These laws are foundational to Jewish practice and are viewed as having a higher level of authority because they are rooted in the Biblical texts.

On the other hand, de'rabbanan refers to laws that were instituted by rabbinic authorities. While these laws are also important and play a significant role in daily life and practice, they are of a different category because they are derived from the interpretation and application of the Torah rather than directly from it.

This framework of division allows for flexibility within Jewish law, with rabbinic legislation serving to protect and refine the observance of the Biblical commandments, often addressing changing circumstances and communal needs. Thus, the correct identification of de'oraita as biblical laws and de'rabbanan as rabbinic ensures a clear understanding of their sources and implications.