Written in Tables of Stone

To leave them without excuse, the Lord Himself condescended to come down upon Sinai, enshrouded in glory and surrounded by His angels, and in a most sublime and awful manner made known His law of Ten Commandments. He did not trust them to be taught by anyone, not even His angels, but spoke His law with an audible voice in the hearing of all the people. He did not, even then, trust them to the short memory of a people who were prone to forget His requirements, but wrote them with His own holy finger upon tables of stone. He would remove from them all possibility of mingling with His holy precepts any tradition, or of confusing His requirements with the practices of men.SR 148.1

He then came still closer to His people, who were so readily led astray, and would not leave them with merely the ten precepts of the Decalogue. He commanded Moses to write, as He should bid him, judgments and laws, giving minute directions in regard to what He required them to perform, and thereby guarded the ten precepts which He had engraved upon the tables of stone. These specific directions and requirements were given to draw erring man to the obedience of the moral law, which he is so prone to transgress.SR 148.2

If man had kept the law of God, as given to Adam after his fall, preserved in the ark 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 token or pledge, they would never have gone into idolatry or been suffered to go down into Egypt, and there would have been no necessity of God's proclaiming His law from Sinai and engraving it upon tables of stone and guarding it by definite directions in the judgments and statutes of Moses.SR 148.3