Proverbs 18:17-21

The first one to plead his case seems right, Until another comes and cross-examines him. To cast lots puts an end to quarrels And decides between powerful contenders. A brother offended is harder to win over than a fortified city, And contentions [separating families] are like the bars of a castle. A man’s stomach will be satisfied with the fruit of his mouth; He will be satisfied with the consequence of his words. Death and life are in the power of the tongue, And those who love it and indulge it will eat its fruit and bear the consequences of their words. [Matt 12:37]