One Lazarus — It is probable, Lazarus was younger than his sisters. Bethany is named, the town of Mary and Martha, and Lazarus is mentioned after them, John 11:5. Ecclesiastical history informs us, that Lazarus was now thirty years old, and that he lived thirty years after Christ's ascension.
Related Commentaries of John 11:1
John 11:1
1 Now a certain man was sick, named Lazarus, of Bethany, the town of Mary and her sister Martha.