It is objected that there is no precept in the book of Genesis for the observance of the Sabbath, and consequently no obligation on the part of the patriarchs to observe it. There is a defect in this argument not noticed by those who use it. The book of Genesis was not a rule given to the patriarchs to walk by. On the contrary, it was written by Moses 2500 years after creation, and long after the patriarchs were dead. Consequently the fact that certain precepts were not found in Genesis is no evidence that they were not obligatory upon the patriarchs. Thus the book does not command men to love God with all their hearts, and their neighbors as themselves; nor does it prohibit idolatry, blasphemy, disobedience to parents, adultery, theft, false witness or covetousness. Who will affirm from this that the patriarchs were under no restraint in these things? As a mere record of events, written long after their occurrence, it was not necessary that the book should contain a moral code. But had the book been given to the patriarchs as a rule of life, it must of necessity have contained such a code. It is a fact worthy of especial notice that as soon as Moses reaches his own time in the book of Exodus, the whole moral law is given. The record and the people were then cotemporary, and ever afterward the written law is in the hands of God’s people, as a rule of life, and a complete code of moral precepts. The argument under consideration is unsound, 1. Because based upon the supposition that the book of Genesis was the rule of life for the patriarchs; 2. Because if carried out it would release the patriarchs from every precept of the moral law except the sixth.[39] 3. Because the act of God in setting apart his rest-day to a holy use, as we have seen, necessarily involves the fact that he gave a precept concerning it to Adam, in whose time it was thus set apart. And hence, though the book of Genesis contains no precept concerning the Sabbath, it does contain direct evidence that such precept was given to the head and representative of the human family. After giving the institution of the Sabbath, the book of Genesis, in its brief record of 2370 years, does not again mention it. This has been urged as ample proof that those holy men, who, during this period, were perfect, and walked with God in the observance of his commandments, statutes and laws,[40] all lived in open profanation of that day which God had blessed and set apart to a holy use. But the book of Genesis also omits any distinct reference to the doctrine of future punishment, the resurrection of the body, the revelation of the Lord in flaming fire, and the Judgment of the great day. Does this silence prove that the patriarchs did not believe these great doctrines? Does it make them any the less sacred?