A more sure word of prophesy

God sanctified and blessed the day in which He had rested from all His wondrous work. And this Sabbath, sanctified of God, was to be kept for a perpetual covenant. It was a memorial that was to stand from age to age, till the close of earth’s history.

BLJ 132.2

 God brought the Hebrews out of their Egyptian bondage, and commanded them to observe His Sabbath, and keep the law given in Eden. Every week He worked a miracle to establish in their minds the fact that in the beginning of the world He had instituted the Sabbath....BLJ 132.3 In the third month they came to the desert of Sinai, and there the law was spoken from the mount in awful grandeur. During their stay in Egypt, Israel had so long heard and seen idolatry practiced that to a large degree they had lost their knowledge of God and of His law, and their sense of the importance and sacredness of the Sabbath; the law was given a second time to call these things to their remembrance. In God’s statutes was defined practical religion for all mankind. Before Israel was placed the true standard of righteousness