Respectfully Ms, that is proven as false, because more is said about sabbath outside of Exodus in the Old Testament. Here's the unrefutable evidence in red Exd(12)Lev(12)Num(3)Deu(3)2Ki(5)1Ch(1)2Ch(3)Neh(9)Psa(1)Isa(4)Jer(4)Eze(3)Amo(1)
"Sabbath
s" Exd(1)Lev(9)1Ch(1)2Ch(4)Neh(1)Isa(2)Lam(2)Eze(12)Hsa(1)
Levitcus proves it was a ceromonial commandment forever.
Numbers proves that they had zero history to reference about what to do when someone was found breaking the sabbath. So your idea about no mention should mean they always knew what to do. It's seem more likely that Sabbath breaking was new to their history.
Nehemiah and
Ezekiel written generations later recalls and proves Sabbath was first given to only one people as a sign and not to the whole world in the book of Genesis.
In
Genesis God chose to tell us about His rest from all His work of creation, and also forbidden fruit that was a sin for Adam. Show us where Sabbath was instituted in creation?
Your prophetess chose to teach you about an instituted sabbath that causes you to study the bible as commentary to her writtings.
Correction should be words from God, not commentary design to create new questions never asked or answered by God's word.
The primary goal of this thread is to examine claims about sabbath institution, not to stone you.

SO, If you have biblical text to "fully believe", please post it, or what you fully believe is not scriptures.
Cool, my point of view is; The bible is God's word to the world, it's a living word for all Generations. The gospel of the Kingdom has nothing to do with Sabbathkeeping. The apostle waited for the Holy Spirit to open their understanding, so what they preached after Penticost are the doctrines of the church which Jesus promised to build. The law and the prophets were read in the synagogue on the Sabbaths. SDA confuse the facts that the apostles were first sent from Christ Church to convert Jews first. SDA point to sabbath days in which those sent from the church to preach about Jesus Christ as if Sabbathkeeping was the established day for Christain worship. SDA method of teaching the bible is bent to incorperate the doctrines rather than the commissioned Gospel of Jesus Christ.
If the Church that Christ promised to build was already built before Pentecost then you maybe you can give me doctrines from before then. Christian doctrines are found primarily in Paul's letters, because Jesus called and chosen him as the apostle to the Gentiles.
Respectfully