Exodus 6:3-6

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. 4I also established my covenant with them to give them the land of Canaan, where they resided as foreigners.

5Moreover, I have heard the groaning of the Israelites, whom the Egyptians are enslaving, and I have remembered my covenant. 6“Therefore, say to the Israelites: ‘I am the LORD, and I will bring you out from under the yoke of the Egyptians. I will free you from being slaves to them, and I will redeem you with an outstretched arm and with mighty acts of judgment.