What though thou wast in a great measure innocent, thy children, upon whom a great part of these calamities fell, might be guilty of great sins; and therefore God is not unrighteous in these proceedings. He hath cast them away, expelled, or cast them out, (to wit, out of the world, or out of his favour; as a man gives his wife a bill of divorce, of which this word is used,) by means (Heb. by the hand, which is oft so used) of their wickedness. Or, hath left them in the hand of their sin, to wit, to be punished by it and for it. Compare Numbers 32:23, Your sin shall find you out.
Related Commentaries of Job 8:4
Job 8:4
4 If thy children have sinned against him, and he have cast them away fora their transgression;