Genesis 21:1-4

MLV(i) 1 And Jehovah visited Sarah as he had said and Jehovah did to Sarah as he had spoken. 2 And Sarah conceived and bore Abraham a son in his old age, at the set time of which God had spoken to him. 3 And Abraham called the name of his son who was born to him, Isaac, whom Sarah bore to him. 4 And Abraham circumcised his son Isaac when he was eight days old, as God had commanded him.