Deuteronomy 15:4

Save when there shall be no poor among you ; rather, only that there shall be no poor among you ; q.d; this ordinance is not intended to prevent creditors seeking the payment of their just debts, but only to prevent there being poor in the land. The reason assigned is that the Lord would greatly bless them in the land which he had given them, so that the creditor would be no loser by refraining from exacting his debt from his brother in the seventh year.