aiah means the Lord is Salvation. He was son of Amoz. He was a high ranking citizen with access to the royal court. Isaiah prophecy was during the reign of Uzziah (good), Jothan (good), Ahaz (bad), and Hezzekiah (good) to the Southern Kingdom. In 722 BC the northern kingdom had fallen to Assyria and the south was on a similar trajectory. Isaiah repeatedly warn against alignment with foreign powers for protection.
They observed and shared ideas
The code of Hammurabi and Chinese legalism both rely on the idea that in order for a state or society to function well and properly, people need to follow a strict adherence to the rules of the state.