Sin is in itself separation from the good, but despair over sin is separation a second time. (p. 142)

If the whole of Christianity hangs on this, on its having to be believed, not comprehended, on its either having to be believed or one's having to be offended …

The dread of sin can sometimes in effect drive a person into sin through dread. (p. 145)

No human being is able to say, of his own and by himself, what sin is, for sin is the very thing he is in. All his talk about sin is at bottom a glossing over …