Deuteronomy 15:5

5 only if thou carefully hearken unto the voice of the LORD thy God to observe to do all these commandments which I command thee this day.

Deuteronomy 15:5 Meaning and Commentary

Ver. 5 Only if thou carefully hearken to the voice of the Lord thy God,
&c.] In his word, and by his prophets; this being the case, there would be no more poor among them, or however they would be so blessed of God, that they would be capable of releasing the debts of the poor, without hurting themselves and their families:

to observe to do all these commandments which I command thee this day;
a phrase often used to put them in mind of the commands of God, and the necessity of keeping them, their temporal happiness depending thereon.

Deuteronomy 15:5 In-Context

3 From a foreigner thou mayest exact it again; but that which is thine with thy brother thine hand shall release,

4 save when there shall be no poor among you. For the LORD shall greatly bless thee in the land which the LORD thy God giveth thee for an inheritance to possess it,

5 only if thou carefully hearken unto the voice of the LORD thy God to observe to do all these commandments which I command thee this day.

6 For the LORD thy God blesseth thee as He promised thee; and thou shalt lend unto many nations, but thou shalt not borrow; and thou shalt reign over many nations, but they shall not reign over thee.

7 "If there be among you a poor man of one of thy brethren within any of thy gates in thy land which the LORD thy God giveth thee, thou shalt not harden thine heart nor shut thine hand from thy poor brother;