Sabbath

Jews view Sabbath as a gift from God. It is a day to devote oneself to higher pursuits rather than the normal, day to day concerns. Sabbath is a day of rest and spiritual enrichment. Though there is a notable amount of prayer on this day, this is not what puts it above other rituals. Jews also eat more elaborately and leisurely on the day of Sabbath. This important ritual happens once every week on Saturday. It is one of the most important rituals in Judaism, and the only one one instituted in the Ten Commandments. It is stated as follows:

“Remember the Sabbath day by keeping it holy. Six days you shall labor and do all your work, but the seventh day is a Sabbath to the LORD your God. On it you shall not do any work, neither you, nor your son or daughter, nor your manservant or maidservant, nor your animals, nor the alien within your gates. For in six days the LORD made the heavens and the earth, the sea, and all that is in them, but he rested on the seventh day. Therefore the LORD blessed the Sabbath day and made it holy.”

http://www.jewishvirtuallibrary.org/jsource/Judaism/shabbat.html