God's words are absolute for the salvation of our souls. Only those who cherish God's words will be glorified with eternal salvation. One of them is the Sabbath of the new covenant. In a word, no one will be saved without keeping this Sabbath in Zion. As the Bible wrote, even Christ Jesus kept this Sabbath as an example. By the Bible, this Sabbath of the new covenant is to be kept only by God's people, not by all believers.

men.the Sabbath is the Biblical Worship day that we must remember and keep.
Then,Why did people keep Sunday Service,not the Sabbath?
It is Because Satan tries to deceive God's people thru Pagan Festivals so that lead them to the Hell.
So,as the Children of God, we should not add anything to the Words of God,nor subtract from Them. Let us obey and keep Even Single Word of Godd so that receive God's Blessings.

Jesus Christ said that those who do what God wants will enter the kingdom of heaven.
I want to go to heaven by keeping the Sabbath that God wants and commands us to do.

Amen! 2,000 years ago, Jesus Christ showed us His example to keep the Sabbath day and His disciples followed to keep it according the regulation of the bible.
We should also keep the Sabbath day which is the absolute word of God to get the eternal salvation and become God's children.