In the SDA construct Father God created a husk or "Personality" (aka body) for Michael the archangel and into this husk was poured actual Deity (the Deity of the Father). The Personality or husk of Michael was God in the sense that the Deity was Michael's to keep provided he didn't screw up.
Part of not screwing up (according to the SDA's) is "honoring the Sabbath".
Had the incarnate archangel sinned it would have lost the license to operate the Deity ( which was what animated the husk ).
Signs of the Time April 2, 1940
It is VITAL for every Christian TO KNOW that Jesus Christ MIGHT have sinned. The Master was not beyond the clutches of temptation. The Heaven-sent Gift could have been eternally lost and the doom of humanity would have been eternally sealed. Jesus Christ knew the pull of evil. "In that He Himself hath suffered being tempted, He is able to succor them that are tempted."
Review and Herald November 14, 1854
Again, where it is declared, that there are none good except the Father, it cannot be understood that none others are good in a relative sense; for Christ and angels, are good, yea perfect, in their respective sphere; BUT that the Father alone is supremely, or absolutely, good; AND that he alone is immortal in an absolute sense; that he alone is self-existent; and, that, consequently, every other being, however high or low, is absolutely dependent upon him for life; for being. This idea is most emphatically expressed by our Saviour himself; " For as the Father hath life in himself, so hath he given to the Son to have life in himself." John v, 26. This would be singular language for one to use who had life in his essential nature, just as much as the Father. To meet such a view, it should read thus: For as the Father hath life in himself, so hath the Son life in himself If as Trinitarians argue, the Divine nature of the Son hath life in himself (i. e., is self existent) jusl the same, and in as absolute a sense, as the Father, why should he represent himself as actually dependent upon the Father for life ?
Ellen White
Could Satan in the least particular have tempted Christ to sin, he would have bruised the Saviour's head. As it was, he could only touch His heel. Had the head of Christ been touched, the hope of the human race would have perished. Divine wrath would have come upon Christ as it came upon Adam. Christ and the church would have been without hope.” ( Signs of the Times, June 9th 1898, see also Selected Messages Book 1 page 256)
Ellen White
The sum and substance of the arguments of Satan is that sin may be immortalized, that Christ abolished the law, and that evil doers may be in favor with God. But the death of Christ tells a different story; for he died to vindicate the claims of the law, to give to the world and to angels an unanswerable argument of the immutability of the law of Jehovah. {ST, February 5, 1894 par. 11}
Ellen White R&H August 13, 1895, paragraph 6
Representing the law of God in its true character arouses the enmity of Satan. Those who love God with all the heart, will love the law of his kingdom. They will not only profess to be guided by its principles, but they will actually live them out, even in a world that is no more favorable to the development of Christian principles than were the inhabitants of the world before the flood, of whom it is written that the thoughts and imaginations of their hearts were evil, and only evil continually. A similar condition of society exists in our world today, and if those who claim to be God's commandment-keeping people do not put in practice the principles of the law which Christ came to our world to vindicate, pronouncing it holy, just, and good, they misrepresent the character and mission of their professed Master
Ellen White also Vindicates the holy law of God by presenting her "testimonies" - as she explains below.
Ellen White
Satan will continue to bring in his erroneous theories and to claim that his sentiments are true. Seducing spirits are at work. I am to meet the danger positively, denying the right of anyone to use my writings to serve the devil's purpose to allure and deceive the people of God. God has spared my life that I may present the testimonies given me, to vindicate that which God vindicates, and to denounce every sophistry [intended] to deceive if possible the very elect.--Ms 126, 1905, pp. 3, 7. ("A Warning Against Present Dangers," typed December 29, 1905.) {5MR 144.1}