How can a reason which hates God be called sound?

When Satan tells me I am a sinner he comforts me immeasurably, since Christ died for sinners.

Night and day I pondered until I saw the connection between the justice of God and the statement that 'the just shall live by his faith.' Then I grasped that the justice of God is that righteousness by which through grace and sheer mercy God justifies us through faith. Thereupon I felt myself to be reborn and to have gone through open doors into paradise.

When God creates faith in a man, that is as great a work as if He created heaven and earth all over again.

What is it to serve God and to do His will? Nothing else than to show mercy to our neighbor. For it is our own neighbor who needs our service; God in heaven needs it not.

The less I pray, the harder it gets; the more I pray, the better it goes.

The human heart is like a millstone in a mill: when you put wheat under it, it turns and grinds and bruises the wheat to flour; if you put no wheat, it still grinds on, but then 'tis itself it grinds and wears away.