Genesis 21:5
“And Abraham was an hundred years old, when his son Isaac was born unto him.”
KJV
Read in Genesis 21Meaning
The age detail underscores how improbable the birth appeared within the story and how strongly the narrative attributes it to promise fulfilled.
Read carefully
The reported age belongs to the biblical narrative and should not be treated as a reproductive expectation or medical model for readers today.
Reflection
The verse magnifies the story's sense of surprise while cautioning against turning an exceptional event into a rule for everyone.