Jewish religious law is called 'halacha' and is found in the Talmud.
Halacha is based on the 613 commandments of the Torah, but all of the laws can be summed up on one statement:
What is hateful to you, do not do to another. All the rest is detail. Now go study.
The Mosaic laws, also known as the laws of Moses, are a set of religious and civil laws found in the Hebrew Bible. They are attributed to Moses and are considered foundational in Judaism. These laws cover a wide range of topics including moral conduct, religious practices, dietary restrictions, and social justice.
The Torah.
By celebrating it and keeping its laws.
Hebrews believed that god had revealed the laws (ten commandments) to Moses theredy making a promise with them.
Scrolls were used by the Hebrews to record their laws and stories before the invention of the codex. These were made of rolled parchment.
The Ten Commandments were only 10 of the moral laws of the Hebrews. Jewish tradition holds that there are 613 commandments in total.
The ancient Hebrews' laws of God are collectively called the Torah. The Torah contains the Ten Commandments (Exodus ch.20) as well as some six hundred additional laws and commands, in addition to its historical and other narratives. See also:More detailAbout the TorahThe Ten Commandments
The ancient Hebrews needed to obey God in order to please him. They also needed to obey his laws.
They used scrolls of animal parchment.
According to the teachings of Judaism, it is the responsibility of every nation to set up just laws for society to behave in a righteous manner. So yes, having a just set of law was very important to the Hebrews. No different than the laws we have today in every country.
Moses (Exodus ch.19, and 24:12).
The Torah, which contains laws and exhortations about these subjects.