37 You must not lend them money at interest or sell them food at a profit.

Read Leviticus 25:37 Using Other Translations

Thou shalt not give him thy money upon usury, nor lend him thy victuals for increase.
You shall not lend him your money at interest, nor give him your food for profit.
Remember, do not charge interest on money you lend him or make a profit on food you sell him.