Every word is so carefully chosen to make Solomon’s meaning clear, yet with an extreme economy of expression. The proverb must be turned over in the mind and looked at one way and another, allowing the precise words to eliminate interpretations that go off track.
As believers, we give thanks for Christian fellowship by which we are able to commune with the each other’s hearts, even though God has constructed our hearts as private areas, known only to ourselves and the Lord – ‘For what man knoweth the things of a man, save the spirit of man which is in him?’ (1 Corinthians 2:11). That gap between us is bridged by faith and love so that we can enjoy fellowship with one another because we share the knowledge of the incarnate Son of God, Jesus Christ.
The Christian is also able to judge all things and to read the hearts of those who do not know God better than they read their own hearts, for ‘he that is spiritual judgeth all things, yet he himself is judged of no man’ (1 Corinthians 2:15).