John Gill, on Prov 21:13

“He that stoppeth his ear against the cry of the poor, shall also cry himself and shall not be heard.”

“Whoso stoppeth his ears at the cry of the poor,.... For want of bread; or, "of the weak", as the Septuagint and other versions; for want of help and protection, when in the greatest distress; and, with the most pressing importunity, entreats his assistance, and yet refuses to hear him out: or, if he does, will not relieve him, which is all one as if he heard him not, or denied him a hearing; he also shall cry himself; the Targum and Syriac version add, "unto God". The sense is, that even such an one shall be brought into the like distressed circumstances, when he shall make application to God, and to his fellow creatures, for relief and assistance: but shall not be heard; a deaf ear will be turned to him by both: the same measure he has measured shall be measured to him again; no mercy shall be shown to an unmerciful man, either by God or man; see Jam 2:13.”

Imported from an open dataset — not yet checked against the printed edition.