The Lord said, ‘I will certainly come back to you in about a year’s time, and your wife Sarah will have a son! ’ Now Sarah was listening at the entrance of the tent behind him.
Then he continued, ‘I am the God of your father, the God of Abraham, the God of Isaac, and the God of Jacob.’ Moses hid his face because he was afraid to look at God.
But God said, ‘No. Your wife Sarah will bear you a son, and you will name him Isaac. I will confirm my covenant with him as a permanent covenant for his future offspring.