Then said I, "Woe is me! for I am undone; because I am a man of unclean lips, and I dwell in the midst of a people of unclean lips" (6:5)
I am intelligent [prudent] (10:30)
Who has performed and done it, Calling the generations from the beginning? "I, the Lord, am the first; And with the last I am He."(41:4)
Fear thou not; for I am with thee: be not dismayed; for I am thy God: I will strengthen thee; yea, I will help thee; yea, I will uphold thee with the right hand of my righteousness. (41:10)
I am the Lord, that is My name; And My glory I will not give to another, (42:8)
For I am the Lord [Yahweh] your God, The Holy One of Israel , your Saviour; (43:3)
Fear not, for I am with you; (43:5)
Everyone who is called by My name, Whom I have created for My glory; I have formed him, yes, I have made him." (43:7)
"You are My witnesses," says the Lord, "And My servant whom I have chosen, That you may know and believe Me, And understand that I am He. Before Me there was no God formed, Nor shall there be after Me. (43:10)
"I, even I, am the Lord, And besides Me there is no saviour." (43:11)
"I have declared and saved, I have proclaimed, And there was no foreign god among you; Therefore you are My witnesses," Says the Lord, "that I am God." (43:12)
"Indeed before the day was, I am He; And there is no one who can deliver out of My hand; I work, and who will reverse it?" (43:13)
"I am the Lord, your Holy One, The Creator of Israel , your King." (43:15)
"I, even I, am He who blots out your transgressions for My own sake; And I will not remember your sins. (43:25)
"Thus says the Lord, the King of Israel, And his Redeemer, the Lord of hosts: "I am the First and I am the Last; Besides Me there is no God." (44:6)
Thus says the Lord, your Redeemer, And He who formed you from the womb: " I am the Lord, who makes all things,..." (44:24)
I am the Lord, and there is no other; There is no God besides Me. I will gird you, though you have not known Me, (45:5)
That they may know from the rising of the sun to its setting That there is none besides Me. I am the Lord, and there is no other; I form the light and create darkness, I make peace and create calamity; I, the Lord, do all these things." "Rain down, you heavens, from above, And let the skies pour down righteousness; Let the earth open, let them bring forth salvation, And let righteousness spring up together. I, the Lord, have created it." (45:5-8)
"Look to Me, and be saved, All you ends of the earth! For I am God, and there is no other." (45:22)
"Listen to Me, O house of Jacob, And all the remnant of the house of Israel , Who have been upheld by Me from birth, Who have been carried from the womb: Even to your old age, I am He, And even to gray hairs I will carry you! I have made, and I will bear; Even I will carry, and will deliver you. (46:3,4)
Remember the former things of old, For I am God, and there is no other; I am God, and there is none like Me, 10 Declaring the end from the beginning, And from ancient times things that are not yet done, Saying, "My counsel shall stand, And I will do all My pleasure," (46:9,10)
"Listen to Me, O Jacob, And Israel, My called: I am He, I am the First, I am also the Last. 13 Indeed My hand has laid the foundation of the earth, And My right hand has stretched out the heavens;" (48:12,13)
Thus says the Lord, your Redeemer, The Holy One of Israel: "I am the Lord your God" (48:17a)
Kings shall be your foster fathers, And their queens your nursing mothers; They shall bow down to you with their faces to the earth, And lick up the dust of your feet. Then you will know that I am the Lord, For they shall not be ashamed who wait for Me." (49:23)
"I, even I, am He who comforts you. Who are you that you should be afraid Of a man who will die, And of the son of a man who will be made like grass" (51:12)
But I am the Lord your God, Who divided the sea whose waves roared— The Lord of hosts is His name. (51:15)
For thus says the Lord GOD:... Therefore My people shall know My name; Therefore they shall know in that day That I am He who speaks: "Behold, it is I."" (52:4,6)
"I was sought by those who did not ask for Me; I was found by those who did not seek Me. I said, "Here I am , here I am ," To a nation that was not called by My name." (65;1)
 Who was Isaiah?
Isaiah a married man with two sons (7:3, 8:1), and was the prince of the prophets (8:3) living approximately 740 – 680 BC.
He also clearly lived to a very old age, given the number of kingdom's and events he writes about. He had access to kings and princes which suggests he was of high birth rank.
It was 240 years before that the kingdom of Israel had been divided into Israel (known also as Samaria or Ephraim) and Judah.
From this time forth, except for a few bright short lived periods of light, both dynasties subsided into abject sin and wickedness. Isaiah's prophecy began with the reign of Uzziah (also called Azariah), a good king in so far as he did not destroy the idol worship. Assyria (Tiglath-Pileser) invaded Israel in about 736 BC took away part of them captive the first time (2 Kings 16, Amos 1). This was completed by Shalmaneser V who took the remainder of Samaria and the ten tribes (2 Kings 17, 1 Chron 5, Hosea 8). During this time the king of Assyria to threaten the king of Judah. In 701 B.C. Sennacherib, who burnt Babylon, led a powerful army into Palestine, but failed to take Jerusalem loosing 185,000 men to the angel of God (Isaiah 37:21). After this time the ancient powerhouse of Assyria dissolved and re-emerged as the Babylonian Empire (612 B.C. to 536 B.C.) with Cyrus, king of Persia, conquering Babylon in 539 B.C and forming the largest by area, empire.
Easton' Revised Bible Dictionary
The son of Amoz Isa 1:1 2:1 who was apparently a man of humble rank. His wife was called "the prophetess" Isa 8:3 either because she was endowed with the prophetic gift, like Deborah Jud 4:4 and Huldah 2Ki 22:14-20 or simply because she was the wife of "the prophet" Isa 38:1 He had two sons, who bore symbolical names. He exercised the functions of his office during the reigns of Uzziah (or Azariah), Jotham, Ahaz, and Hezekiah Isa 1:1 Uzziah reigned fifty-two years (B.C. 810-759) and Isaiah must have begun his career a few years before Uzziah's death, probably B.C. 762 He lived till the fourteenth year of Hezekiah, and in all likelihood outlived that monarch (who died B.C. 698) and may have been contemporary for some years with Manasseh. Thus Isaiah may have prophesied for the long period of at least sixty-four years.