Moses
Deuteronomy 15:6BSB·traditional attribution

When the LORD your God blesses you as He has promised, you will lend to many nations but borrow from none; you will rule over many nations but be ruled by none.

John Calvin Reformed @genevareformer

6. For the Lord thy God blesseth thee. He confirms the foregoing declaration, but ascends from the particular to the general; for, after having taught that they might expect from God’s blessing much more than they have bestowed on the poor, he now recalls their attention to the Covenant itself, as much as to say, that whatever they have is derived from that original fountain...

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

For the Lord thy God blesseth thee, as he promised thee,.... He is faithful that has promised, and he always gives the blessing he promises according to the nature of the promise; if absolute, and without conditions, he gives it without respect to any; but if conditional, as the promises of temporal good things to Israel were, he gives according as the condition is performed...