“Luther himself, while it is said believed in and practiced the observance of the seventh-day Sabbath, did not prescribe it in his articles of faith for his followers, in the copies that we now have access to. However, it has been said that in his original thesis, Luther advocated the observance of the seventh-day Sabbath, but that his colleagues objected on the grounds that it was an unpopular doctrine, which would have a tendency to repulse supporters of the Reformation who were not as pious as they should have been, but were of great assistance against the usurpations of the papacy.” A History of the True Religion, Chapter 20
Luther’s commentary on Exodus 16:4, 22-30, regarding the Sabbath: “Hence you can see that the Sabbath was before the Law of Moses came, and has existed from the beginning of the world. Especially have the devout, who have preserved the true faith, met together and called upon God on this day.”—Translated from Auslegung des Alten Testaments (Commentary on the Old Testament), in Sämmtliche Schriften (Collected Writings), edited by J.G. Walch,
Vol. 3, col. 950 [St. Louis edition of Luther’s Works, 1880]).
“Luther said of the Waldenses ‘that among them he had found one thing [in particular] worthy of admiration, a thing unheard of in the popish church, that, laying aside the doctrines of men, they meditated in the law of God day and night, and that they were expert, and even well versed, in the knowledge of the Scriptures’ (Jones’ Church History, p. 263).”
Excerpts from Luther and the Sabbath from WHERE IS THE TRUE CHURCH? AND ITS INCREDIBLE HISTORY! by David C. Pack