"8:16 . The seal of God's law is found in the fourth commandment. This only, of all the ten, brings to view both the name and the title of the Lawgiver. It declares Him to be the Creator of the heavens and the earth, and thus shows His claim to reverence and worship above all others. Aside from this precept, there is nothing in the Decalogue to show by whose authority the law is given. When the Sabbath was changed by the papal power, the seal was taken from the law. The disciples of Jesus are called upon to restore it by exalting the Sabbath of the fourth commandment to its rightful position as the Creator's memorial and the sign of His authority. GC 452.1"
"For in six days the Lord made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the Lord blessed the sabbath day, and hallowed it."
EGW directly references the content of Exodus 20:11 (the fourth commandment) and its significance as the 'seal' of God's law, highlighting its connection to God as Creator. This is a direct principle derived from the verse.
"“To the law and to the testimony.” While conflicting doctrines and theories abound, the law of God is the one unerring rule by which all opinions, doctrines, and theories are to be tested. Says the prophet: “If they speak not according to this word, it is because there is no light in them.” Verse 20 . GC 452.2"
"To the law and to the testimony: if they speak not according to this word, it is because there is no light in them."
EGW directly quotes Isaiah 8:20 and uses it as a standard for testing doctrines against the law of God.
"Again, the command is given: “Cry aloud, spare not, lift up thy voice like a trumpet, and show My people their transgression, and the house of Jacob their sins.” It is not the wicked world, but those whom the Lord designates as “my people,” that are to be reproved for their transgressions. He declares further: “Yet they seek Me daily, and delight to know My ways, as a nation that did righteousness, and forsook not the ordinance of their God.” Isaiah 58:1, 2 . Here is brought to view a class who think themselves righteous and appear to manifest great interest in the service of God; but the stern and solemn rebuke of the Searcher of hearts proves them to be trampling upon the divine precepts. GC 452.3"
"Cry aloud, spare not, lift up thy voice like a trumpet, and shew my people their transgression, and the house of Jacob their sins."
EGW directly quotes Isaiah 58:1 to support her point.
"The prophet thus points out the ordinance which has been forsaken: “Thou shalt raise up the foundations of many generations; and thou shalt be called, The repairer of the breach, The restorer of paths to dwell in. If thou turn away thy foot from the Sabbath, from doing thy pleasure on My holy day; and call the Sabbath a delight, the holy of the Lord, honorable; and shalt honor Him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words: then shalt thou delight thyself in the Lord.” Verses 12-14 . This prophecy also applies in our time. The breach was made in the law of God when the Sabbath was changed by the Roman power. But the time has come for that divine institution to be restored. The breach is to be repaired and the foundation of many generations to be raised up. GC 452.4"
"And they that shall be of thee shall build the old waste places: thou shalt raise up the foundations of many generations; and thou shalt be called, The repairer of the breach, The restorer of paths to dwell in."
EGW directly quotes Isaiah 58:12 and connects it to the Sabbath.