In Jewish religious law (halakha), Jews are commanded to rest on Shabbat, and refrain from performing certain types of work.
Certain items may not be touched, moved or eaten on Shabbat because they are classified as muktzeh (off-limits).
Although the use of money on Shabbat is not directly forbidden in the Torah, its use has long been condemned by the sages.
Additionally, many business transactions are customarily recorded on paper, and writing is one of the 39 melachot.
There are also leniencies in the event of a sick person, including even minor discomfort among very young children.