And it was so, when the days of their feasting were finished, that Job sent and sanctified them, and rose up early in the morning, and offered burnt offerings according to the number of them all: for Job said, It may be that my sons have sinned, and cursed God in their hearts. Thus did Job continually.
All Commentaries on Job 1:5 Go To Job 1
Didymus the Blind
AD 398
Here the text stresses the great purity of Job’s children. Since [Job] did not perceive any sin in them, he sacrificed because of [the sons’] disposition. Job was aware that the human weakness and sluggishness that mark young persons often escalates. This is also why St. Paul said, “I am not aware of anything against myself.” And the psalmist, “Forgive my hidden faults.” Therefore we have to believe that the sons of Job did not die because of their own sins.