One major principle discussed in the "Commentary on the Mishnah" is?

The principle highlighted in the "Commentary on the Mishnah" revolves around the role of oral law, which is central to Jewish legal tradition. The Mishnah itself is a foundational text of rabbinic Judaism, serving as a codification of oral laws alongside biblical commandments. This commentary elaborates on the interpretations and applications of these oral traditions, emphasizing their authority and necessity for understanding the written Torah.

By focusing on the oral law, the "Commentary on the Mishnah" sheds light on how Jewish communities interpret and apply their religious teachings and rituals. This oral tradition is crucial for maintaining the continuity and relevance of Jewish law through the centuries, adapting it to changing circumstances while remaining rooted in established teachings.

The other options, while important in their own right, do not encapsulate the principal focus of the "Commentary on the Mishnah." The significance of prayer, the history of Israel, and dietary laws are notable topics within Judaism but are not the central theme of this particular commentary, which is primarily concerned with the transmission, interpretation, and authority of oral law in shaping Jewish identity and practice.