The Moral Precepts of the Old Law

We next have to consider each of the types of precept in the Old Law—first, the moral precepts (question 100); second, the ceremonial precepts (questions 101-103); and third, the judicial precepts (questions 104-105).
On the first topic there are twelve questions:  (1) Do all the moral precepts of the Old Law belong to the law of nature?  (2) Do the moral precepts of the Old Law have to do with the acts of all the virtues?  (3) Are all the moral precepts of the Old Law traced back to the ten precepts of the Decalogue?  (4) What about the way in which the precepts of the Decalogue are distinguished?  (5) What about the number of precepts?  (6) What about their order?  (7) What about the way in which they are set down?  (8) Is it possible to be dispensed from the precepts of the Decalogue?  (9) Does the mode of practicing a virtue fall under a precept?  (10) Does the mode of charity fall under a precept?  (11) How are the other moral precepts distinguished?  (12) Do the moral precepts of the Old Law give justification [before God]?