Deuteronomy 15:4 - Joseph Benson’s Commentary on the Old and New Testaments

Save when there shall be no poor The words may be rendered thus, as in the margin of our Bibles: To the end that there be no poor among you. And so they contain a reason of this law; namely, that none be empoverished and ruined by a rigid exaction of debts. For the Lord shall greatly bless thee If in this and other things you be obedient, God will so abundantly bless you that you shall be well able to forbear the requiring of your debts on the sabbatic year.