And Jehovah said to Moses, Now shalt thou see what I will do to Pharaoh; for by a strong hand shall he let them go, and by a strong hand shall he drive them out of his land.
And God spoke to Moses, and said to him, I am Jehovah.
And I appeared unto Abraham, unto Isaac, and unto Jacob, as the Almighty God; but by my name Jehovah I was not made known to them.
References for Exodus 6:3
And I established also my covenant with them, to give them the land of Canaan, the land of their pilgrimage, in which they were sojourners.
And I have heard also the groaning of the children of Israel, whom the Egyptians have forced to serve, and I have remembered my covenant.
Therefore say unto the children of Israel, I am Jehovah, and I will bring you out from under the burdens of the Egyptians, and I will deliver you from their service, and I will redeem you with a stretched-out arm, and with great judgments.