People can resolve and adopt on their own to follow God's law or not. This is the amount of individual responsibility mentioned under rule of law in Judaism. How strict a Jew is in practicing the conventions of Judaism will be based on how much love he has towards the divinity.
Judaism has a set of laws and it signifies every aspects of life. It adds religious significance to every aspect of life. It originated from Taro and Rabbis laws.
All the ordinary, routine and trivial acts of everyday life are connected to divinity under Jewish law. It considers that an individual fulfills his duty and responsibilities in his birth based on how much love he has towards God.