Isaiah was married to a prophetess, and they had to sons.
Isaiah taught many people about the coming messiah and God's messages.
While he was alive Isaiah wrote "The Book of Isaiah"this book is said to have been written by him, but there is no actual proof.
According to a tradition in the Talmud, Isaiah suffered a horrible death. He was fastened between two planks and sawn asunder. It’s likely that Isaiah is one of the heroes of faith referred to in Hebrews 11:37.