Matthew Henry Commentary Proverbs 21:13

"Whoso stoppeth his ears at the cry of the poor, He also shall cry, but shall not be heard." — Proverbs 21:13 (ASV)

Those who oppress the poor by beating down wages, those who will not relieve according to their ability those in distress, and those in authority who neglect to do justice, stop their ears at the cry of the poor. But undoubtedly, care must be taken in the exercise of charity.