Why would the sabbath(rest day) be a benefit of an agricultural society consisting of servants and slaves?

Explanation:

Sabbath is the seventh and sacred day of the week according to Hebrew and Shemitah tradition. That day was reserved for rest and worship only. The fact that agricultural societies -such as ancient Egypt- had adopted this kind of tradition was beneficial to remove the lordship and rule of man over the slaves.

c. troops marched forward in close formation against newer, more accurate weapons

c. businesses/firms & government