What the Word says the Sabbath is:
a blessed day (Genesis 2:3).
a commandment (Exodus 20:8-10).
a covenant (Exodus 31:12-17).
a sign (Ezekiel 20:12).
a delight (Isaiah 58:13).
a day of rest remaining today (Hebrews 4:9-11).
a holy/set-apart day (Isaiah 58:13).
a sanctified day (Genesis 2:2-3).
a demonstration of love (John 14:15).
a day made for man (Mark 2:27-28)