I am persuaded that one great cause of the darkness and uncomfortable feelings of many well-meaning people in the matter of religion, is their habit of confounding, and not distinguishing, justification and sanctification. It can never be too strongly impressed on our minds that they are two separate things. No doubt they cannot be divided, and everyone that is a partaker of either is a partaker of both. But never, never ought they to be confounded, and never ought the distinction between them to be forgotten.
J.C. Ryle