“Our doctrine, therefore, is that the good works of believers are always devoid of a spotless purity which can stand the inspection of God; nay that when they are tried by the strict rule of justice, they are, to certain extent impure. But, when once God has graciously adopted believers, he not only accepts and loves their persons, but their works also, and condescends to honor them with a reward.” (John Calvin, The Necessity of Reforming the Church, p. 64)