Abraham was a hundred years old when his son Isaac was born to him.
References for Genesis 21:5
Sarah said, “God has brought me laughter, and everyone who hears about this will laugh with me.”
References for Genesis 21:6
And she added, “Who would have said to Abraham that Sarah would nurse children? Yet I have borne him a son in his old age.”
References for Genesis 21:7
The child grew and was weaned, and on the day Isaac was weaned Abraham held a great feast.
References for Genesis 21:8
But Sarah saw that the son whom Hagar the Egyptian had borne to Abraham was mocking,
References for Genesis 21:9
and she said to Abraham, “Get rid of that slave woman and her son, for that woman’s son will never share in the inheritance with my son Isaac.”
References for Genesis 21:10
The matter distressed Abraham greatly because it concerned his son.
References for Genesis 21:11
But God said to him, “Do not be so distressed about the boy and your slave woman. Listen to whatever Sarah tells you, because it is through Isaac that your offspring will be reckoned.
References for Genesis 21:12
I will make the son of the slave into a nation also, because he is your offspring.”
References for Genesis 21:13
Early the next morning Abraham took some food and a skin of water and gave them to Hagar. He set them on her shoulders and then sent her off with the boy. She went on her way and wandered in the Desert of Beersheba.
References for Genesis 21:14
When the water in the skin was gone, she put the boy under one of the bushes.