מִ֭רְמָה בְּלֶב־חֹ֣רְשֵׁי רָ֑ע וּֽלְיֹעֲצֵ֖י שָׁל֣וֹם שִׂמְחָֽה׃
圖謀惡事的人，心存詭詐；勸人和睦的人，必得喜樂。
Malbim
5. A man can be destroyed by family dissension, as when brothers bear malice towards one another and fabricate hatred (Proverbs 12:20) in his house. This is what the enmity between Joseph and his brothers did to the patriarch Jacob. But Job's family lived in harmony and affection: [His sons held regular feasts etc.]