Exodus 3:13–14
13 Then Moses said to God, “If I come to the people of Israel and say to them, ‘The God of your fathers has sent me to you,’ and they ask me, ‘What is his name?’ what shall I say to them?” 14 God said to Moses, “I am who I am.”1 And he said, “Say this to the people of Israel: r‘I am has sent me to you.’”
Exodus 6:3
3 I appeared to Abraham, to Isaac, and to Jacob, as hGod Almighty,1 but by my name the iLord I did not make myself known to them.