Exodus 6:10 YLT

⁸  and I have brought you in unto the land which I have lifted up My hand to give it to Abraham, to Isaac, and to Jacob, and have given it to you -- a possession; I 'am' Jehovah.'

⁹  And Moses speaketh so unto the sons of Israel, and they hearkened not unto Moses, for anguish of spirit, and for harsh service.

¹⁰  And Jehovah speaketh unto Moses, saying,

¹¹  'Go in, speak unto Pharaoh king of Egypt, and he doth send the sons of Israel out of his land;

¹²  and Moses speaketh before Jehovah, saying, 'Lo, the sons of Israel have not hearkened unto me, and how doth Pharaoh hear me, and I of uncircumcised lips?'