Exodus 6:8-12

I will bring you to the land which I swore to give to Abraham, Isaac, and Jacob, and I will give it to you as a possession; I am the Lord.’ ”

So Moses said this to the sons of Israel, but they did not listen to Moses on account of their despondency and cruel bondage.

Now the Lord spoke to Moses, saying,

“Go, tell Pharaoh king of Egypt to let the sons of Israel go out of his land.”

But Moses spoke before the Lord, saying, “Behold, the sons of Israel have not listened to me; how then will Pharaoh listen to me, as I am unskilled in speech?”