The Lord dealt with Sarah as he had said, and the Lord did for Sarah as he had promised.
Sarah conceived and bore Abraham a son in his old age, at the time of which God had spoken to him.
Abraham gave the name Isaac to his son whom Sarah bore him.
And Abraham circumcised his son Isaac when he was eight days old, as God had commanded him.
Abraham was a hundred years old when his son Isaac was born to him.
Now Sarah said, "God has brought laughter for me; everyone who hears will laugh with me."
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved. (New Revised Standard Bible Version Online)