The preparations were made, according to the command; and in obedience to a further injunction, Moses directed that a barrier be placed about the mount, that neither man nor beast might intrude upon the sacred precinct. If any ventured so much as to touch it, the penalty was instant death. (PP 304.1) MC VC

On the morning of the third day, as the eyes of all the people were turned toward the mount, its summit was covered with a thick cloud, which grew more black and dense, sweeping downward until the entire mountain was wrapped in darkness and awful mystery. Then a sound as of a trumpet was heard, summoning the people to meet with God; and Moses led them forth to the base of the mountain. From the thick darkness flashed vivid lightnings, while peals of thunder echoed and re-echoed among the surrounding heights. “And Mount Sinai was altogether on a smoke, because the Lord descended upon it in fire: and the smoke thereof ascended as the smoke of a furnace, and the whole mount quaked greatly.” Exodus 19:18. “The glory of the Lord was like devouring fire on the top of the mount”(Exodus 24:17) in the sight of the assembled multitude. And “the voice of the trumpet sounded long, and waxed louder and louder.” Exodus 19:19. So terrible were the tokens of Jehovah’s presence that the hosts of Israel shook with fear, and fell upon their faces before the Lord. Even Moses exclaimed, “I exceedingly fear and quake.” Hebrews 12:21. (PP 304.2) MC VC

And now the thunders ceased; the trumpet was no longer heard; the earth was still. There was a period of solemn silence, and then the voice of God was heard. Speaking out of the thick darkness that enshrouded Him, as He stood upon the mount, surrounded by a retinue of angels, the Lord made known His law. Moses, describing the scene, says: “The Lord came from Sinai, and rose up from Seir unto them; He shined forth from Mount Paran, and He came with ten thousands of saints: from His right hand went a fiery law for them. Yea, He loved the people; all His saints are in Thy hand: and they sat down at Thy feet; every one shall receive of Thy words.” Deuteronomy 33:2, 3. (PP 304.3) MC VC

The time is not far distant when God will arise to vindicate His insulted authority. “The Lord cometh out of His place to punish the inhabitants of the earth for their iniquity.” Isaiah 26:21. “But who may abide the day of His coming? and who shall stand when He appeareth?” Malachi 3:2. The people of Israel, because of their sinfulness, were forbidden to approach the mount when God was about to descend upon it to proclaim His law, lest they should be consumed by the burning glory of His presence. If such manifestations of His power marked the place chosen for the proclamation of God’s law, how terrible must be His tribunal when He comes for the execution of these sacred statutes. How will those who have trampled upon His authority endure His glory in the great day of final retribution? The terrors of Sinai were to represent to the people the scenes of the judgment. The sound of a trumpet summoned Israel to meet with God. The voice of the Archangel and the trump of God shall summon, from the whole earth, both the living and the dead to the presence of their Judge. The Father and the Son, attended by a multitude of angels, were present upon the mount. At the great judgment day Christ will come “in the glory of His Father with His angels.” Matthew 16:27. He shall then sit upon the throne of His glory, and before Him shall be gathered all nations. (PP 339.1) MC VC

When the divine Presence was manifested upon Sinai, the glory of the Lord was like devouring fire in the sight of all Israel. But when Christ shall come in glory with His holy angels the whole earth shall be ablaze with the terrible light of His presence. “Our God shall come, and shall not keep silence: a fire shall devour before Him, and it shall be very tempestuous round about Him. He shall call to the heavens from above, and to the earth, that He may judge His people.” Psalm 50:3, 4. A fiery stream shall issue and come forth from before Him, which shall cause the elements to melt with fervent heat, the earth also, and the works that are therein shall be burned up. “The Lord Jesus shall be revealed from heaven with His mighty angels, in flaming fire taking vengeance on them that know not God, and that obey not the gospel.” 2 Thessalonians 1:7, 8. (PP 339.2) MC VC

He did not even then trust His precepts to the memory of a people who were prone to forget His requirements, but wrote them upon tables of stone. He would remove from Israel all possibility of mingling heathen traditions with His holy precepts, or of confounding His requirements with human ordinances or customs. But He did not stop with giving them the precepts of the Decalogue. The people had shown themselves so easily led astray that He would leave no door of temptation unguarded. Moses was commanded to write, as God should bid him, judgments and laws giving minute instruction as to what was required. These directions relating to the duty of the people to God, to one another, and to the stranger were only the principles of the Ten Commandments amplified and given in a specific manner, that none need err. They were designed to guard the sacredness of the ten precepts engraved on the tables of stone. (PP 364.1) MC VC

If man had kept the law of God, as given to Adam after his fall, preserved by Noah, and observed by Abraham, there would have been no necessity for the ordinance of circumcision. And if the descendants of Abraham had kept the covenant, of which circumcision was a sign, they would never have been seduced into idolatry, nor would it have been necessary for them to suffer a life of bondage in Egypt; they would have kept God’s law in mind, and there would have been no necessity for it to be proclaimed from Sinai or engraved upon the tables of stone. And had the people practiced the principles of the Ten Commandments, there would have been no need of the additional directions given to Moses. (PP 364.2) MC VC

The sacrificial system, committed to Adam, was also perverted by his descendants. Superstition, idolatry, cruelty, and licentiousness corrupted the simple and significant service that God had appointed. Through long intercourse with idolaters the people of Israel had mingled many heathen customs with their worship; therefore the Lord gave them at Sinai definite instruction concerning the sacrificial service. After the completion of the tabernacle He communicated with Moses from the cloud of glory above the mercy seat, and gave him full directions concerning the system of offerings and the forms of worship to be maintained in the sanctuary. The ceremonial law was thus given to Moses, and by him written in a book. But the law of Ten Commandments spoken from Sinai had been written by God Himself on the tables of stone, and was sacredly preserved in the ark. (PP 364.3) MC VC