Exodus 3:15-16

15God also said to Moses: “You are to say to Bnei-Yisrael, Adonai, the God of your fathers, the God of Abraham, Isaac and Jacob, has sent me to you. This is My Name forever, and the Name by which I should be remembered from generation to generation.

16“Go now, gather the elders of Israel together, and say to them: ‘Adonai, the God of your fathers—the God of Abraham, Isaac and Jacob—has appeared to me, saying, I have been paying close attention to you and have seen what is done to you in Egypt.