If thy children have sinned against him If thou wast innocent, thy children, upon whom a great part of these calamities fell, might be guilty; and therefore God is not unrighteous in these proceedings. And he have cast them away Hebrew, hath expelled, or cast them out; (namely, out of the world, or out of his favour; as a man gives his wife a bill of divorce, of which the same word is used;) for their transgression Hebrew, by the hand, that is, by means of, their wickedness. Bildad argued in this way according to the maxim which he had entertained: but it does not appear that he had any foundation for judging thus of them.
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;