Reply to Objection 2: The man who fulfilled the precepts of the Law is said to live in them, because he did not incur the penalty of death, which the Law inflicted on its transgressors: in this sense the Apostle quotes this passage ( Gal. 3:12 ).
Reply to Objection 3: The precepts of human law justify man by acquired justice: it is not about this that we are inquiring now, but only about that justice which is before God.