Moses came down from the quaking, smoking Mount Sinai and brought to the wandering children of Israel the Ten Commandments, fundamental rules for the conduct of life. These commandments were, however, not new. They had been known to Adam and his posterity, who had been commanded to live them from the beginning, and were merely reiterated by the Lord to Moses. And the commandments even antedated earth life and were part of the test for mortals established in the council in heaven.
The first of the Ten Commandments requires that men worship the Lord; the fourth designates a Sabbath day especially for such worship:
“Thou shalt have no other gods before me. […]
“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 20:3, 8–11.)
To many, Sabbath-breaking is a matter of little moment, but to our Heavenly Father it is disobedience to one of the principal commandments. It is evidence of man’s failure to meet the individual test set for each of us before the creation of the world, “to see if they will do all things whatsoever the Lord their God shall command them.” (Abraham 3:25.) …
The solemn command brought down from the thundering of Mount Sinai was “Remember the sabbath day, to keep it holy.” That commandment has never been rescinded nor modified. Instead, it has been reinforced in modern times:
“But remember that on this, the Lord’s day, thou shalt offer thine oblations and thy sacraments unto the Most High, confessing thy sins unto thy brethren, and before the Lord.
“And on this day thou shalt do none other thing, only let thy food be prepared with singleness of heart that … thy joy may be full.” (D&C 59:12–13.)