Article XIV. Of Works of Supererogation

Voluntary Works besides, over and above, God's Commandments, which they call Works of Supererogation, can not be taught without arrogancy and impiety: for by them men ao declare, that they do not only render unto God as much as they are bound to do, but that they do more for his sake, than of bounden duty is required: whereas Christ saith plainly, When ye have done all that are commanded to you, say, We are unprofitable servants.