Whedon's Commentary on the Bible - Proverbs 31:8
8. For the dumb Not merely those deprived of speech, but also those who are unable from any cause to plead their own cause; defend the defenceless. Such as are appointed to destruction Sons of those passed away; that is, for every orphan. Be the patron of all the bereaved and helpless. “Favour the cause or right of all orphan children.” Zockler and Conant. read more
Wesley's Explanatory Notes - Proverbs 31:8
Open thy mouth for the dumb in the cause of all such as are appointed to destruction.The dumb — For such as cannot speak in their own cause, either through ignorance, or because of the dread of their more potent adversaries.Destruction — Who, without such succour from the judges, are like to be utterly ruined. read more