Being a Christan is less about cautiously avoiding sin than about courageously and actively doing God's will.
The more isolated a person is, the more destructive will be the power of sin over him, and the more deeply he becomes involved in it, the more disastrous is his isolation.
If my sinfulness appears to me to be in any way smaller or less detestable in comparison with the sins of others, I am still not recognizing my sinfulness at all. ... How can I possibly serve another person in unfeigned humility if I seriously regard his sinfulness as worse than my own?
There is no kindness more cruel than the kindness which consigns another person to their sin.
There is no worse sin than unbelief toward the gospel.