Proverbs 14:10

10. The heart knoweth his own bitterness Hebrew, the heart knows the bitterness of his soul; that is, the bitterness of itself, or its own bitterness. Nephesh is often used in default of a reflexive pronoun. Comp. Proverbs 12:23. When our version was made the neuter singular pronoun its had not come into use. We now say its instead of his. The sentiment of the proverb is, that every one knows his own experiences, whether of sorrow or of joy, better than it is possible for another to know them.

Intermeddle Intermix or become familiar with, understand thoroughly. Comp. 1Co 2:11 ; 1 Corinthians 5:13. The proverb teaches the perfect individuality of each soul. Something there is in every sorrow, in every joy, that no one else can share. But there is a divine sympathizer, uniting perfect knowledge with perfect love. Speaker’s Commentary.