John Gill Commentary Leviticus 25:37

"Thou shalt not give him thy money upon interest, nor give him thy victuals for increase." — Leviticus 25:37 (ASV)

You shall not give him your money upon usury Lend him money, expecting and insisting upon a large interest for it; this is to be understood of persons in poor and necessitous circumstances, of which the text only speaks; otherwise, if persons borrow money to gain by it, to carry on a greater trade, or to make purchase with it, it is but reasonable that the lender should have a share of profit arising from thence:

nor lend him your victuals for increase ; by which it should seem that those two words, used in (Leviticus 25:36) , though in the main they signify the same thing, yet may be distinguished, the one as concerning money, the other food; and which latter is not to be given by way of loan to a person in want of it, but freely; as for instance, if a man gives a poor man a bushel of wheat, on condition he gives him two for it hereafter, this is lending or giving his victuals for increase.