Ellicott's Commentary for English Readers - Proverbs 29:10
(10) The bloodthirsty hate the upright.—Or, perfect man. “for what fellowship hath righteousness with unrighteousness” (2 Corinthians 6:14); the life of the perfect man is a continual reproach to them.But the just (or upright) seek his soul—i.e. care for the life of the perfect; their uprightness shows itself in active help-giving. read more
Ellicott's Commentary for English Readers - Proverbs 29:9
(9) Whether he rage or laugh—i.e., whether the wise man treat him with sternness or good temper, yet “there is no rest,” the fool will not cease from his folly; or, the sense may be, “the fool rages and laughs;” he will not listen quietly to argument, by which he might be brought to wisdom, but is either violent or supercilious. read more