Repentance out of mere fear is really sorrow for the consequences of sin, sorrow over the danger of sin — it bends the will away from sin, but the heart still clings. But repentance out of conviction over mercy is really sorrow over sin, sorrow over the grievousness of sin — it melts the heart away from sin. It makes the sin itself disgusting to us, so it loses its attractive power over us. We say, ‘this disgusting thing is an affront to the one who died for me. I’m continuing to stab him with it!’

A faith without some doubts is like a human body with no antobodies in it. People who blithely go through life too busy or indifferent to ask the hard questions about why they believe as they do will find themselves defenseless against either the experience of tragedy or the probing questions of a smart skeptic. A person's faith can collapse almost overnight if she failed over the years to listen patiently to her own doubts, which should only be discarded after long reflection.

Any person who only sticks with Christianity as long as things are going his or her way, is a stranger to the cross

I've heard plenty of Christians try to answer the why question by going back to the what. "You have to believe because Jesus is the Son of God." But that's answering the why with more what. Increasingly we live in a time in which you can't avoid the why question. Just giving the what (for example, a vivid gospel presentation) worked in the days when the cultural institutions created an environment in which Christianity just felt true or at least honorable. But in a post-Christendom society, in the marketplace of ideas, you have to explain why this is true, or people will just dismiss it.

It is possible to avoid Jesus as Savior as much by keeping all the Biblical rules as by breaking them.

Fear-based repentance makes us hate ourselves. Joy-based repentance makes us hate the sin.

A god of less wrath than the God of the Bible is necessarily a god of less love. His anger is a product of his love.