Here again caution should be exercised not to misread Isserles to mean that all Noahic and Sinaitic laws are identical, and Isserles himself goes on to make mention of some aspects wherein the two systems differ. Still Isserles, more so than is apparent from the words of Nahmanides, sees the two systems as having a great deal in common. For according to Isserles, the civil laws of the two systems differ only where the Talmudic sources explicitly note the dissimilarity, "but otherwise one should not presume to exclude the Noahite from Mosaic principles."<ref>Moses Isserles, Sheilot U'Teshuvot Rarno, Sudylkow; Isaac Madpis, printer, 1835, page 7, Responsum 10.</ref>
That Justice should be thought of as referring to a thorough going system containing points of law, as Nahmanides and Isserles see it, is denied by at least one early author. Jacob Anatoli (1194-1256) expresses the view, in his Hamelamed, that the Noahide tradition does not feature a comprehensive code of standard regulations under Justice. Anatoli writes:When the Noahites were enjoined concerning Justice, they were put under obligation to create legal arrangements .... It is incumbent on the judges to draw up rules of equity that shall be appropriate for that particular country, as exemplified by the manner in which this matter is handled currently by the nations, severally. Likewise, it is incumbent upon merchants and upon the members of the trades to establish regulations for themselves... and whatever emerges as the law in this manner is law, as much as that which is written in the Bible. Furthermore, anyone violating this law violates Scripture, because Scripture commands the individual to accept the decisions of the contemporary jurists. The dictum, "The law of the land is the Law," relates to this concept. Nonetheless, Anatoli could agree to the inclusion of the twenty imperatives which are listed above as features of Noahide Justice. For these twenty are but manifestations of those two aspects by which the talmudic sources define Justice, (a) that courts shall be established and (b) that any act which contributes to an unjust decision be prohibited.
