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 20:11
"Luther declared that “the Sabbath command remains for the
church” for, although humanity has lost the knowledge of their Creator, God wanted “this command about sanctifying the Sabbath to remain in force” because it signifies that spiritual life will be restored to the believers through Christ.
Thus, the real purpose of the seventh day is the preaching and hearing of the Word, and since humans should spend their Sabbath time with God’s Word and other forms of worship, they are also made aware of the fact that they were primarily created to acknowledge and glorify God.
It is especially on the Sabbath that “God speaks with us through his Word.”
DenisKaiser