Therefore, the hope of justification must not be placed in them, but in faith alone: we account a man to be justified by faith, without the works of the law (Rom 3:28).Commentary on 1 Timothy
We must therefore distinguish three kinds of precept in the Old Law; viz. 'moral' precepts, which are dictated by the natural law; 'ceremonial' precepts, which are determinations of the Divine worship; and 'judicial' precepts, which are determinations of the justice to be maintained among men.