Deuteronomy 15:5

5 if only you will obey the Lord your God by diligently observing this entire commandment that I command you today.

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 Of a foreigner you may exact it, but you must remit your claim on whatever any member of your community owes you.
4 There will, however, be no one in need among you, because the Lord is sure to bless you in the land that the Lord your God is giving you as a possession to occupy,
5 if only you will obey the Lord your God by diligently observing this entire commandment that I command you today.
6 When the Lord your God has blessed you, as he promised you, you will lend to many nations, but you will not borrow; you will rule over many nations, but they will not rule over you.
7 If there is among you anyone in need, a member of your community in any of your towns within the land that the Lord your God is giving you, do not be hard-hearted or tight-fisted toward your needy neighbor.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.