21 Woe unto them that are wise in their own eyes, and prudent in their own sight!*
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*Old Testament | Isaiah 5:20-21
Isaiah was the 8th-century BC Israelite prophet after whom the Book of Isaiah is named. ... Within the text of the Book of Isaiah, Isaiah himself is referred to as "the prophet",[9] but the exact relationship between the Book of Isaiah and any such historical Isaiah is complicated. The traditional view is that all 66 chapters of the book of Isaiah were written by one man, Isaiah, possibly in two periods between 740 BC and c. 686 BC, separated by approximately 15 years, ...
The first verse of the Book of Isaiah states that Isaiah prophesied during the reigns of Uzziah (or Azariah), Jotham, Ahaz, and Hezekiah, the kings of Judah (Isaiah 1:1). Uzziah's reign was 52 years in the middle of the 8th century BC, and Isaiah must have begun his ministry a few years before Uzziah's death, probably in the 740s BC. Isaiah lived until the fourteenth year of the reign of Hezekiah (who died 698 BC). He may have been contemporary for some years with Manasseh. Thus Isaiah may have prophesied for as long as 64 years.[10] | From https://en.wikipedia.org/wiki/Isaiah