Genesis 21:1–12

And the Lord visited Sara, as he had promised: and fulfilled what he had spoken.

2 And she conceived and bore a son in her old age, at the time that God had foretold her.

3 And Abraham called the name of his son, whom Sara bore him, Isaac.

4 And he circumcised him the eighth day, as God had commanded him,

5 When he was a hundred years old: for at this age of his father, was Isaac born.

6 And Sara said: God hath made a laughter for me: whosoever shall hear of it will laugh with me.

7 And again she said: Who would believe that Abraham should hear that Sara gave suck to a son, whom she bore to him in his old age?

8 And the child grew, and was weaned: and Abraham made a great feast on the day of his weaning.

9 And when Sara had seen the son of Agar, the Egyptian, playing with Isaac, her son, she said to Abraham:

10 Cast out this bondwoman and her son; for the son of the bondwoman shall not be heir with my son Isaac.

11 Abraham took this grievously for his son.

12 And God said to him: Let it not seem grievous to thee for the boy, and for thy bondwoman: in all that Sara hath said to thee, hearken to her voice: for in Isaac shall thy seed be called.