'I Am He' in the Bible

Whose purpose and work was it? His who sent out the generations from the start. I the Lord, the first, and with the last, I am he.

You are my witnesses, says the Lord, and my servant whom I have taken for myself: so that you may see and have faith in me, and that it may be clear to you that I am he; before me there was no God formed, and there will not be after me.

From time long past I am God, and from this day I am he: there is no one who is able to take you out of my hand: when I undertake a thing, by whom will my purpose be changed?

Give ear to me, Jacob, and Israel, my loved one; I am he, I am the first and I am the last.