21 Also take no heed unto all words that are spoken; lest thou hear thy servant curse thee:
22 For oftentimes also thine own heart knoweth that thou thyself likewise hast cursed others.
-What Solomon is saying here is simple; inevitably we will all be guilty of saying hurtful things that are better off unheard. Even the people that we thought would always have our back will ultimately fail in this regard. Although difficult, it is better to forgive and forget what is, in most cases, simply an emotional outburst. To add greater impetus to this logic, the Holy Spirit is here to remind us that even we ourselves are guilty of the same.