Moses
Deuteronomy 15:7ESV·traditional attribution

“If among you, one of your brothers should become poor, in any of your towns within your land that the LORD your God is giving you, you shall not harden your heart or shut your hand against your poor brother,

John Calvin Reformed @genevareformer

7. If there be among you a poor man The same word אביון, ebyon, is used, which we have seen just above, verse 4; nor is there any contradiction when He commands them to relieve beggars, whom He had before forbidden to exist among His people; for the object of the prohibition was, that if any were reduced to beggary, they should not be cast out and forsaken.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. A law for the relief of poor debtors, such (we may suppose) as were insolvent. Every seventh year was a year of release, in which the ground rested from being tilled and servants were discharged from their services; and, among other acts of grace, this was one, that those who had borrowed money, and had not been able to pay it before...

Commenting on Deuteronomy 15:1-11

John Gill Reformed Baptist @doctorgill

If there be among you a poor man of one of thy brethren,.... As there would be, according to the Targums of Jonathan and Jerusalem, if they did not keep the commandments of the law, and continue therein: within any of thy gates, in the land which the Lord thy God giveth thee; a native of the land was to be preferred to a foreigner...