Who is This *Ex. 3:14-15

Who is this God and what is His Name?
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14 And God said to Moses, “I AM WHO I AM.” And He said, “Thus you shall say to the children of Israel, ‘I AM has sent Me to you.’” 15 Moreover God said to Moses, “Thus you shall say to the children of Israel: ‘The LORD God of your fathers, the God of Abraham, the God of Isaac, and the God of Jacob, has sent me to you. This is My name forever, and this is My memorial to all generations.’ 
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https://www.biblegateway.com/passage/?search=Exodus+3%3A14-15&version=NKJV;NIV