Albert Barnes Commentary Proverbs 14:10

"The heart knoweth its own bitterness; And a stranger doth not intermeddle with its joy." — Proverbs 14:10 (ASV)

A striking expression of the ultimate solitude of each man’s soul at all times, and not merely at the hour of death. Something there is in every sorrow, and in every joy, which no one else can share. Beyond that range it is well to remember that there is a Divine Sympathy, uniting perfect knowledge and perfect love.