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.
Timothy KellerEveryone will be forgotten, nothing we do will make any difference, and all good endeavors, even the best, will come to naught. Unless there is God. If the God of the Bible exists, and there is a True Reality beneath and behind this one, and this life is not the only life, then every good endeavor, even the simplest ones, pursued in response to God's calling, can matter forever.
Timothy KellerIf we are not deliberately thinking about our culture and our context, we will be conformed to it without ever knowing.
Timothy Keller