To sabbath is to cease, or to rest. God sabbathed – rested – on the seventh day, after creating the universe. Later, God commanded the ancient Israelites to observe a weekly day of rest as a sign and symbol of God’s provision for them… both in creation, and while they traveled in the wilderness after He freed them from slavery in Egypt.
A lot of people, including many Christians, are confused about whether Christians should live by the 10 Commandments. There should be no confusion.