Genesis 21:11

Grievous in Abraham’s sight. To Sarah, Hagar and Ishmael were intruders, the one a low-caste Egyptian, an alien slave, the other a half-breed youth who would always be causing trouble. Abraham, quite naturally, did not share these feelings. He did not question Isaac’s prerogatives as the promised heir, but Ishmael was also his son. For years he had thought him to be the heir rather than Isaac. Ishmael was his own flesh and blood, and he loved this lad who had been his only son for 14 years. To Abraham, it seemed impossible to comply with Sarah’s wish.