NOTE: This question is explicitly requesting an answer from the Seventh Day Adventist perspective.
Official teachings of the Seventh Day Adventists make the common distinction of Moral, Ceremonial, and Civil laws. Like many other Christians who also take this view, they teach that only the Moral law applies to Christians. They often use the phrases "Law of Moses" to denote ceremonial and civil laws that do not apply to Christians and "Law of God" to denote moral laws that do apply to Christians.
What is confusing me is that their reasoning for the abolition of the ceremonial laws seems to also cover the Sabbath, which as we all know they greatly consider not abolished.
According to EGW Writings "The Present Truth", the reasoning why the "law of Moses" (i.e. doesn't need to be followed) is different from the laws of God is because the Hand of Moses wrote one on parchment and the Finger of God wrote the other in stone.
There is a clear distinction between the law of Moses, and the law of God in the Holy Scriptures. (PTJW July 1849 p.3.5)
The law of Moses, was a law of carnal ceremonies, written by the HAND of Moses in a BOOK. (PTJW July 1849 p.3.6)
The law of God, is the ten commandments, written by the FINGER of GOD on TWO TABLES OF STONE. (PTJW July 1849 p.3.7)
Here we see two laws, and two covenants; one written by the hand of Moses in a book, the other written with the finger of God on two tables of stone. (PTJW July 1849 p.4.5)
Their own words on the abolition of the Law of Moses, which includes all ceremonial and civil laws, but not the moral laws:
The law of Moses, was a law of shadows, which were abolished when the new, second, and better covenant came. Its “carnal rites,” “burnt offerings and sacrifices,” “meats and drinks, and divers washings,” were all “nailed to the cross” when the Lamb of God shed his most precious blood. (PTJW July 1849 p.3.9)
For convenience of readers that do not know, the SDA basis for Sabbath Keeping is in Genesis 2:
“And on the seventh day GOD ended his work which he had made; and he rested on the seventh day from all his work which he had made. And God blessed the seventh day, and sanctified it: because that in it he had rested from all his work which GOD created and made.”** Genesis 2:2, 3. (PTJW July 1849 p.1.9)
Here God instituted the weekly rest or Sabbath. It was the seventh day. He BLESSED and SANCTIFIED that day of the week, and no other; therefore the seventh day, and no other day of the week is holy, sanctified time. (PTJW July 1849 p.1.10)
Now here is the issue. Genesis 2, the SDA basis for Sabbath keeping, was not written on stone by the finger of God. It was written in the book by Moses. Therefore, Genesis chapter 2 is ceremonial law. Since the Weekly Sabbath is part of the ceremonial law, it has been abolished, as it says in (PTJW July 1849 p.3.9).
If Genesis 2 is considered to be the institution of the Weekly Sabbath law, doesn't this prove that the Weekly Sabbath is part of the ceremonial law and therefore abolished? Genesis 2:2-3 was not written on stone by God and placed inside the ark.
Perhaps another way to ask at the question of Adventists, why is the Sabbath not ceremonial law and therefore still valid, despite the finger/hand, stone/book, and God/Moses distinctions?"