The sabbath was instituted since creation of the world and therefore it’s not a human institution and does not belong to Jews. The Jews came after 2,000 years because Abraham is the father of Jewish race. The Jews rested the sabbath for almost 3,000+years,but they rested in accordance to the commandments God gave to Moses in mt.sinai. The Jews believe in the authority of the old testament while the Adventists believe in the old and New testament.The Jews and the Seventh day Adventists are following the bible as the fourth commandments says.

The protestants since their imception in the 16 th century have been following the Catholicchurch command, and therefore they have no word for self defense.They should follow bible astheir teacher and return to observe the biblical sabbath (saturday) but they still cling to their mother church. Thereforethe reformation battle was lost and won by the Catholic church. Instead of prescribing to the sola scriptura (The bible and bible alone) they are following the roman traditions. In the final days of earth’s last great conflict will be about worship? And there will be two classes of people in the world (the sabbath and sunday keepers). That’s why in the book of (Revelation 12:17) Says ; And the dragon was wroth with the woman , and went to make war with the remnant of her seed which keeps the commandments of God and the testimony of Jesus Christ”.

God has never given mankind nor any other creature divine authoritative power to change times and laws – God’s Holy Moral Law. However God prophesied through Daniel that a religious and civil kingdom/nation will blaspheme God, – claiming to be God on earth:

“And he shall speak great words against the most High, and shall wear out the saints of the most High, and think to change times and laws: and they shall be given into his hand until a time and times and the dividing of time. ”
Daniel 7:25 KJV

Yes, God does not force worship or love; God has given man the liberty of choice, whether to love, obey, or worship God or not.
But to tell Christians that they can rest on any day they want is to teach people to make void God’s Holy Law, and it’s pure confusion.

Those who proclaim to be Christian or who call themselves Christian do so because they follow Christ:

Christian – one that is of or relating to, of or belonging to, Christ.

You are telling them not to follow Christ, and if so, then they are no longer Christians. Why?
Because Christ Jesus said this:

“For the Son of man is Lord even of the sabbath day. ”
Matthew 12:8 KJV

Only Christ Jesus could make such claims, because Hr is God:

“1 In the beginning was the Word, and the Word was with God, and the Word was God.
2 The same was in the beginning with God.
3 All things were made by him; and without him was not any thing made that was made. ”
John 1:1-3 KJV

Satan hates God and His Holy Law. He does not want anyone to follow Christ Jesus.