# God said to Moses, "I AM THAT I AM."
"God said to Moses, 'Tell them that God says his name is, "I AM THAT I AM."'"
# I AM THAT I AM
This whole sentence is God's name. God is teaching that he is eternal; he has always lived and always will live. (see the next verse plus John 8:58, John 18:5 and Revelation 1:8)