Exodus 6:1-3

Darby Translation

6 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.

² And God spoke to Moses, and said to him, I am Jehovah.

³ 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.