Sanctification, again, is a thing which does not prevent a man having a great deal of inward spiritual conflict. By conflict I mean struggle within the heart between the old nature and the new, the flesh and the spirit, which are to be found together in every believer. . . . A true Christian is one who has not only peace of conscience, but war within. He may be known by his warfare as well as by his peace.
– J. C. Ryle
1816 – 1900