1. Moral law and eternal law
The moral law is a rational command aimed at common good establish by the one who has the community care or its government (Saint Thomas). We can analyze it.
- It is an order, a command, an imperative.
It is rational, so it is not a capricious or arbitrary order, but it has to be in accordance with the reason.
- It is aimed at common good, that is, for the benefit of all, for the good of society, not only advantageous for a few individuals or certain social groups.
- It is established by the one who has the community care or its government. So, only who rules the society can make laws.
- It has to be dictated or promulgated, i.e., it has to be made known so that everybody obeys it.
The eternal law is the reason of divine wisdom as long as it rules every act and all the movements (Saint Thomas). We can distinguish its parts.
- The eternal law stems from Providence who rules the world.
- It is aimed at every act (of every man) and at every fact (of everything).
- The man knows this law although in an incomplete way. The other beings do not know, but follow it necessarily.