This from C.S. Lewis, Oxford History of English Literature: The Sixteenth Century Excluding Drama pp. 32-34
We want, above all, to know what it felt like to be an early Protestant. One thing is certain. It felt very unlike being a ‘puritan’ such as we meet in nineteenth-century fiction. Dickens’s Mrs. Clennam, trying to expiate her early sin by a long life of voluntary gloom, was doing exactly what the first Protestants would have forbidden her to do. They would have thought her whole conception of expiation papistical. On the Protestant view one could not, and by God’s mercy need not, expiate one’s sins.
Theologically, Protestantism was either a recovery, or a development, or an exaggeration (it is not for the literary historian to say which) of Pauline theology. Hence in Buchanan’s Franciscanus ad Fratres the Friars’ prophylactic against it is to keep clear of the ‘old man from Tarsus’ (Tarsensis fuge scripta senis).
In the mind of a Tyndale or Luther, as in the mind of St. Paul himself, this theology was by no means an intellectual construction made in the interests of speculative thought. It springs directly out of a highly specialized religious experience; and all its affirmations, when separated from that context, become meaningless or else mean the opposite of what was intended.
Propositions originally framed with the sole purpose of praising the Divine compassion as boundless, hardly credible, and utterly gratuitous, build up, when extrapolated and systematized, into something that sounds not unlike devil-worship. The experience is that of catastrophic conversion. The man who has passed through it feels like one who has waked from nightmare into ecstasy. Like an accepted lover, he feels that he has done nothing, and never could have done anything, to deserve such astonishing happiness. Never again can he ‘crow from the dunghill of desert*. All the initiative has been on God’s side; all has been free, unbounded grace. And all will continue to be free, unbounded grace. His own puny and ridiculous efforts would be as helpless to retain the joy as they would have been to achieve it in the first place. Fortunately they need not. Bliss is not for sale, cannot be earned. ‘Works’ have no ‘merit’, though of course faith, inevitably, even unconsciously, flows out into works of love at once. He is not saved because he does works of love: he does works of love because he is saved. It is faith alone that has saved him: faith bestowed by sheer gift. From this buoyant humility, this farewell to the self with all its good resolutions, anxiety, scruples, and motive-scratchings, all the Protestant doctrines originally sprang.
For it must be clearly understood that they were at first doctrines not of terror but of joy and hope: indeed, more than hope, fruition, for as Tyndale says, the converted man is already tasting eternal life. The doctrine of predestination, says the XVIIth Article, is ‘full of sweet, pleasant and unspeakable comfort to godly persons’. But what of ungodly persons? Inside the original experience no such question arises. There are no generalizations. We are not building a system. When we begin to do so, very troublesome problems and very dark solutions will appear. But these horrors, so familiar to the modern reader (and especially to the modern reader of fiction), are only by-products of the new theology. They are astonishingly absent from the thought of the first Protestants. Relief and buoyancy are the characteristic notes. In a single sentence of the Tischreden Luther tosses the question aside for ever. Do you doubt whether you are elected to salvation? Then say your prayers, man, and you may conclude that you are. It is as easy as that.