Exodus 6:1-3

1Then the LORD said to Moses, “Now you will see what I will do to Pharaoh: Because of my mighty hand he will let them go; because of my mighty hand he will drive them out of his country.” 2God also said to Moses, “I am the LORD . 3I appeared to Abraham, to Isaac and to Jacob as God Almighty, Hebrew El-Shaddai but by my name the LORD See note at 3:15. I did not make myself fully known to them.