Still the absence of Scriptural authority for Sundaykeeping occasioned no little embarrassment. The people questioned the right of their teachers to set aside the positive declaration of Jehovah, “The seventh day is the Sabbath of the Lord thy God,” in order to honor the day of the sun. To supply the lack of Bible testimony, other expedients were necessary. A zealous advocate of Sunday, who about the close of the twelfth century visited the churches of England, was resisted by faithful witnesses for the truth; and so fruitless were his efforts that he departed from the country for a season and cast about him for some means to enforce his teachings. When he returned, the lack was supplied, and in his after labors he met with greater success. He brought with him a roll purporting to be from God Himself, which contained the needed command for Sunday observance, with awful threats to terrify the disobedient. This precious document—as base a counterfeit as the institution it supported—was said to have fallen from heaven and to have been found in Jerusalem, upon the altar of St. Simeon, in Golgotha. But, in fact, the pontifical palace at Rome was the source whence it proceeded. Frauds and forgeries to advance the power and prosperity of the church have in all ages been esteemed lawful by the papal hierarchy.... DD 26.3
But notwithstanding all the efforts to establish Sunday sacredness, papists themselves publicly confessed the divine authority of the Sabbath and the human origin of the institution by which it had been supplanted. In the sixteenth century a papal council plainly declared: “Let all Christians remember that the seventh day was consecrated by God, and hath been received and observed, not only by the Jews, but by all others who pretend to worship God; though we Christians have changed their Sabbath into the Lord's Day.”—The Great Controversy, 281, 282. Those who were tampering with the divine law were not ignorant of the character of their work. They were deliberately setting themselves above God.... DD 26.4