Genesis 21:9 CPDV

⁷  And again, she said: 'Hearing this, who would believe Abraham, that Sarah breast-fed a son, to whom she gave birth, despite being elderly?'

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

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

¹⁰  'Cast out this woman servant and her son. For the son of a woman servant will not be heir with my son Isaac.'

¹¹  Abraham took this grievously, for the sake of his son.