1 Then the Lord visited Sarah, just as he had promised; and he fulfilled what he had spoken.
2 And she conceived and gave birth to a son in her old age, at the time that God had foretold to her.
3 And Abraham called the name of his son, whom Sarah bore for him, Isaac.
4 And he circumcised him on the eighth day, just as God had instructed him,
5 when he was one hundred years old. Indeed, at this stage of his father's life, Isaac was born.