Reference

Leviticus 25:37

Thou shalt not give him thy money upon usury, nor lend him thy victuals for increase.
35

And if thy brother be waxen poor, and fallen in decay with thee; then thou shalt relieve him: yea, though he be a stranger, or a sojourner; that he may live with thee.

36

Take thou no usury of him, or increase: but fear thy God; that thy brother may live with thee.

37

Thou shalt not give him thy money upon usury, nor lend him thy victuals for increase.

38

I am the Lord your God, which brought you forth out of the land of Egypt, to give you the land of Canaan, and to be your God.

39

And if thy brother that dwelleth by thee be waxen poor, and be sold unto thee; thou shalt not compel him to serve as a bondservant:

Counter-Arguments

The strongest case that this verse does not belong in this theme.

Land Sabbath / Rest for the Earth

This verse deals exclusively with financial transactions between individuals, specifically prohibiting usury and lending victuals for profit. It makes no mention of land, agricultural cycles, or any form of rest for the earth.