The heart knows its own bitterness,
and a stranger does not take part in its joy. Bible see other translations

“its own bitterness.” The Hebrew text literally reads, “The heart knows the bitterness of its soul.” This is an instance where the word “soul” refers to the thing itself, and thus the translation “its own” bitterness is accurate. Other people may have similar experiences to the experiences we have as individuals, but in the final analysis, only the person and God and Jesus really know the depths of sorrow or the heights of joy in the person’s heart. That is why it is so important to have an intimate relationship with God and the Lord Jesus Christ, and to walk and talk with them on a daily and intimate basis.

Commentary for: Proverbs 14:10