rons1lady,
One of the most important names for God in the old testament is Yahweh, or Jehovah, from the verb " to be" meaning simply but profoundly, " I am who I am," and "I will be who I will be." God is the author of life and salvation. His "I am" expresses the fact that he is the infinite and original personal God who is behind everything and to whom everything must finally be traced. " I am who I am," signals the truth that nothing else defines who God is but God himself. What he says and does is who he is.
God favored his people by revealing himself by several names which offered special insight into his love and righteousness.
Jehovah/Yahweh( I am who I am), Jehovah-jireh (The Lord- Will Provide), Jehovah-nissi ( The -Lord-Is -My- Banner), Jehovah-shalom (The-Lord-Is-Peace), Jehovah-shammah (The-Lord-Is-There), Jehovah-tsebaoth ( The-Lord-Of-Hosts) Jehovah Elohe Israel (Lord-God-Of -Israel). El or Elohim( Your God), El Shaddaai (God Almighty), El Elohe Israel ( God, the God of Israel),Yisra-el (God strives).
The devine name Yahweh is usually translated Lord in English versions of the Bible, because it became a practice in late Old Testament Judaism not to pronounce the sacred name YHWH (Yahweh), but to say instead " my lord". In the New Testament God is known as Father.
So you see "I am who I am" is God's name (YHWH).
God says I am the first and the last; and beside me there is no God.
Be Blessed.