Exodus 6:1-6 RSV

1 But the LORD said to Moses, "Now you shall see what I will do to Pharaoh; for with a strong hand he will send them out, yea, with a strong hand he will drive them out of his land."
2 And God said to Moses, "I am the LORD.
3 I appeared to Abraham, to Isaac, and to Jacob, as God Almighty, but by my name the LORD I did not make myself known to them.
4 I also established my covenant with them, to give them the land of Canaan, the land in which they dwelt as sojourners.
5 Moreover I have heard the groaning of the people of Israel whom the Egyptians hold in bondage and I have remembered my covenant.
6 Say therefore to the people of Israel, 'I am the LORD, and I will bring you out from under the burdens of the Egyptians, and I will deliver you from their bondage, and I will redeem you with an outstretched arm and with great acts of judgment,