I get your point, everyone dies by Adam's disobedience, and everyone lives by Christ's obedience. By what do we know when/if(not) we are obedient as Christ is?
including the law of Christ (Mt 22:37-39),
give us the commands and exhortations that are the rule of our lives under the new covenant,
where the new covenant law is put in our minds and written on our hearts, giving us to know
what is loving and what is not loving.