THE BIRTH OF ISAAC

The LORD graciously remembered and visited Sarah as He had said, and the LORD did for her as He had promised.
So Sarah conceived and gave birth to a son for Abraham in his old age, at the appointed time of which God had spoken to him.
Abraham named his son Isaac (laughter), the son to whom Sarah gave birth.

ISAAC’S BIRTH PROMISED BY GOD

Then God said to Abraham, “As for Sarai your wife, you shall not call her name Sarai (my princess), but her name will be Sarah (Princess).
I will bless her, and indeed I will also give you a son by her. Yes, I will bless her, and she shall be a mother of nations; kings of peoples will come from her.