Back of all laws and rules, as the fundamental consideration, whether consciously expressed in laws or carried out instinctively, lies the welfare of society. Among the wolves the pack that is best disciplined by the strongest and most successful leader is the one that survives. In the earlier savage groups the rules which guided united action grew up as a result of successful experience in securing food and warding off enemies. Among them the less disciplined, the less intelligently directed groups perish. Through his fear of the unknown, stimulated by the terrible vindications of nature's laws, when poison and pestilence and storms and floods do their deadly work, the savage feels the presence of unknown forces that he calls gods, and he thus gives to his rules of action the sanction of divinity. And as society develops through the pastoral, agricultural and industrial stages into the tribe and state, with the development of religion and the growing sense of right and of responsibility to one's fellow men, this religious sanction of the law still abides. In the earlier days the sanction was due to fear of the vengeance of the gods. In later society it is the sense of right and justice and love for one's fellow men, springing from the firm belief in the divine creation and direction of the universe and in God's care for men. But as this sense of fear or right or justice or love, associated with a Being felt to be divine, is not universal, inasmuch as many members of society are found ready to act selfishly, taking the law into their own hands, force is needed in all stages of society to put the rules and laws into effect. With every law, as Austin says, must go a penalty. But as society grows more and more humane the sense of obligation of each individual for the welfare of his fellows grows, until in the best society laws are made and obeyed by most citizens, not from a sense of fear of punishment, but mainly out of goodwill to others. A sense of justice prevails and the sanction of law becomes not so much fear of the penalty imposed, as the moral and religious sense of the individual and of society. Why, for example, do you obey the law against stealing? IV. MOSES' RELATION TO THE OLD TESTAMENT LAWS.