'It is I' in the Bible

Yet it does not so intend,Nor does it plan so in its heart,But rather it is its purpose to destroyAnd to cut off many nations.

And the fading flower of its glorious beauty,Which is at the head of the fertile valley,Will be like the first-ripe fig prior to summer,Which one sees,And as soon as it is in his hand,He swallows it.

“It is I who have declared and saved and proclaimed,And there was no strange god among you;So you are My witnesses,” declares the Lord,“And I am God.

Confirming the word of His servantAnd performing the purpose of His messengers.It is I who says of Jerusalem, ‘She shall be inhabited!’And of the cities of Judah, ‘They shall be built.’And I will raise up her ruins again.

“It is I who says to the depth of the sea, ‘Be dried up!’And I will make your rivers dry.

“It is I who says of Cyrus, ‘He is My shepherd!And he will perform all My desire.’And he declares of Jerusalem, ‘She will be built,’And of the temple, ‘Your foundation will be laid.’”

“I will give you the treasures of darknessAnd hidden wealth of secret places,So that you may know that it is I,The Lord, the God of Israel, who calls you by your name.

“It is I who made the earth, and created man upon it.I stretched out the heavens with My handsAnd I ordained all their host.

Who is this who comes from Edom,With garments of glowing colors from Bozrah,This One who is majestic in His apparel,Marching in the greatness of His strength?“It is I who speak in righteousness, mighty to save.”