John Gill Bible Commentary

Thou shalt not give him thy 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 thy victuals for increase; by which it should seem that those two words, used in Lev 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.