Albert Barnes Commentary Proverbs 13:7

"There is that maketh himself rich, yet hath nothing: There is that maketh himself poor, yet hath great wealth." — Proverbs 13:7 (ASV)

Compare Proverbs 11:24. There is a seeming wealth behind which there lies a deep spiritual poverty and wretchedness. There is a poverty which makes a person rich for the kingdom of God.