“Remember the Sabbath day, to keep it holy.
Six days shalt thou labour, and do all thy work:
But the seventh day is the Sabbath of the LORD thy God:

in it thou shalt not do any work, thou, nor thy son, 

nor thy daughter, thy manservant, nor thy maidservant,
nor thy cattle, nor thy stranger that is within thy gates:
For in six days the LORD made heaven and earth,

the sea, and all that in them is,
and rested the seventh day:
wherefore the LORD blessed the Sabbath day,

and hallowed it.”
Exodus 20:8-11