- It was prophesied to the patriarch Abraham that he would have a son and that his name should be called Isaac. When Abraham became one hundred years old, this son was born to him by his first wife Sarah. Though this was Abraham's second son. it was Sarah’s first and only child.
On the eighth day from his birth, Isaac was circumcised, as was necessary for all males of Abraham's household, in order to be in compliance with Yahweh's covenant.
After Isaac had been weaned, Sarah saw Ishmael mocking, and urged her husband to banish Hagar and Ishmael so that Isaac would be Abraham's only heir. Abraham was hesitant, but at God's order he listened to his wife's request.
- Birth of Isaac