'It is I' in the Bible

However he doesn't mean so, neither does his heart think so; but it is in his heart to destroy, and to cut off not a few nations.

I will give you the treasures of darkness, and hidden riches of secret places, that you may know that it is I, the LORD, who call you by your name, even the God of Israel.

Therefore my people shall know my name; in that day they will know that I am he who speaks; behold, it is I."

You were wearied with the length of your way; yet you did not say, 'It is in vain.' You found a reviving of your strength; therefore you weren't faint.

Who is this who comes from Edom, with dyed garments from Bozrah? this who is glorious in his clothing, marching in the greatness of his strength? "It is I who speak in righteousness, mighty to save."