Isaiah is recognized as a witness to one of the most unstable periods in Jerusalem’s history, from both political and religious point of view. Around 735 B.C.E., the nations of Aram and Israel threatened to invade Jerusalem, the capital of the city of Judah, if King Ahaz didn’t join their anti-Assyrian coalition. Later, Assyria invaded Judah to suppress a rebellion by King Hezekiah in 701 B.C.C. As a propjet, Isaiah delivered messages from Yahweh about these events to political leaders and social elites in Jerusalem. He enjoyed a good relationship with the royal members and had free access to the palace.
Saying that he was a part of the Jerusalem aristocracy, Isaiah took an active part in events and guided people of the higher authority. However, this position didn’t stop his from being outspoken. He is known to have attacked the ruling classes, in defense of common people, against the corruption that they faced.