'Instinct' in the Bible
For when Gentiles who have no Law obey by natural instinct the commands of the Law, they, without having a Law, are a Law to themselves;
For I do not understand my own actions [I am baffled, bewildered]. I do not practice or accomplish what I wish, but I do the very thing that I loathe [ which my moral instinct condemns].
But these people, like irrational animals-creatures of instinct born to be caught and destroyed-speak blasphemies about things they don't understand, and in their destruction they too will be destroyed,