Ellen White is not creator of the Sabbath, Ellen is a false prophet that does not make the Sabbath false:
It is YHWH that makes holy, by what and how He says:
The word *sign is word #H226 – אוֹת - Strong's Exhaustive Concordance, Hebrew Dictionary: meaning mark, token, sign, consent, flag, evidence of consent.
Ezekiel 20:12, “And I also gave them My Sabbaths, to be a sign* between them and Me, to know that I am יהוה who sets them apart/makes them holy.”
Exodus 31:13, “And you, speak to the children of Yisra’ĕl, saying, ‘My Sabbaths you are to guard, by all means, for it is a sign* between Me and you throughout your generations, to know that I, יהוה, am setting you apart/making you holy.”
Now the usual response to those in opposition is “the Sabbath is only for Jews (Israelites/Hebrews) or that the Law has been done away. We will use Scripture to show neither of these are true. First the Sabbath is and was always for Hebrews and non-Hebrew Gentiles alike:
Isaiah 56:1-7, “Thus said יהוה, “Guard right-ruling, and do righteousness, for near is My deliverance to come, and My righteousness to be revealed. Blessed is the man who does this, and the son of man who becomes strong in it, guarding the Sabbath lest he profane it, and guarding his hand from doing any evil. And let not the son of the gentile who has joined himself to יהוה speak, saying, ‘יהוה has certainly separated me from His people,’ nor let the eunuch say, ‘Look I am a dry tree.’ For thus said יהוה, “To the eunuchs who guard My Sabbaths, and have chosen what pleases Me, and are holding onto My covenant: to them I shall give in My house and within My walls a place and a name better than that of sons and daughters – I give them an everlasting name that is not cut off. Also the sons of the gentile who join themselves to יהוה, to serve Him, and to love the Name of יהוה, to be His servants, all who guard the Sabbath, and not profane it, and are holding onto My covenant, them I shall bring to My set-apart mountain, and let them rejoice in My house of prayer. Their ascending offerings and their sacrifices are accepted on My altar, for My house is called a house of prayer for all the peoples.”
Romans 9:6-8, "However, it is not as though YHWH's plan had failed. For it is not everyone who is a descendant of Israyl who belongs to Israyl. Nor, just because they are his descendants, are they all Abraham's children; but: In Isaac will your seed be called. That is, it is not those who are the children of the flesh who are YHWH's children; but it is the children of the promise who are regarded as Abraham's seed."
Psalm 105:6-9, "O seed of Abraham His servant, You children of Yaaqob, His chosen ones! He is YHWH our Father! His judgments are in all the earth. He has remembered His covenant forever, the Law He commanded for a thousand generations; Which He made; ratified, established, with Abraham, and vowed by His oath to Isaac. He confirmed it; let it stand, to Yaaqob for a Law, and to Israyl for an everlasting covenant."
Galatians 3:28-29, "Is there not the Yahdai as well as the Greek; Gentile? Is there not the slave as well as the freeman? Is there not the male and the female? For all of you must be in unity in Yahshua Messiah. And if you are in Messiah, then you are a seed of Abraham, heirs according to the promise."
Romans 11:16-31, “Now if the first-fruit is set-apart, the lump is also. And if the root is set-apart, so are the branches. And if some of the branches were broken off, and you, being a wild olive tree, have been grafted in among them, and came to share the root and fatness of the olive tree, do not boast against the branches. And if you boast, remember: you do not bear the root, but the root bears you! You shall say then, “The branches were broken off that I might be grafted in.” Good! By unbelief they were broken off, and you stand by belief. Do not be arrogant, but fear. For if Yah did not spare the natural branches, He might not spare you either. See then the kindness and sharpness of Yah: on those who fell sharpness, but toward you kindness, if you continue in His kindness, otherwise you also shall be cut off. And they also, if they do not continue in unbelief, shall be grafted in, for Yah is able to graft them in again. For if you were cut out of the olive tree which is wild by nature, and were grafted contrary to nature into a good olive tree, how much more shall these who are the natural branches, be grafted into their own olive tree? For I do not wish you to be ignorant of this secret, brothers, lest you should be wise in your own estimation, that hardening in part has come over Yisra’ĕl, until the completeness of the gentiles has come in. And so all Yisra’ĕl shall be saved, as it has been written, “The Deliverer shall come out of Tsiyon, and He shall turn away wickedness from Ya‛aqoḇ, and this is My covenant with them, when I take away their sins. Truly, as regards the Good News they are enemies for your sake, but concerning the choice they are beloved for the sake of the fathers. For the gifts and the calling of Yah are not to be repented of. For as you also at one time disobeyed Yah, but now have obtained compassion through their disobedience, so also these have now disobeyed, that through the compassion shown you they also might obtain compassion.”
1 Peter/Kepha 1:13-21, "Therefore, gird up the loins of your mind, be sober, and hope to the end for the undeserved pardon that is to be brought to you at the revelation of Yahshua Messiah. As obedient children, do not conform to the former lusts you had when you lived in ignorance; But as He Who called you is holy, so you also become holy in all your conduct; Because it is written Be holy, for I am holy. And if you call on the Father, Who, without respect of persons judges according to each man's work, conduct yourselves throughout the time of your sojourning here in reverence; Knowing that you were not redeemed with corruptible things, such as silver or gold, from your idolatrous way of life handed down to you by tradition from your forefathers; But with the precious blood of Messiah, as of a lamb without blemish and without spot; Who truly was foreordained before the foundation of the world, but was manifest in these last times for you; Who through Him we do believe in YHWH, Who raised Him up from the dead, and gave Him glory; that your faith and hope might be in YHWH."