"the challenges of our day-to-day existence are sustained reminders that our life of faith simply must have its center somewhere other than in our ability to hold it together in our minds. Life is a pounding surf that wears away our rock-solid certainty. The surf always wins. Slowly but surely. Eventually. It may be best to ride the waves rather than resist them. What are your one or two biggest obstacles to staying Christian? What are those roadblocks you keep running into? What are those issues that won't go away and make you wonder why you keep on believing at all? These are questions I asked on a survey I gave on my blog in the summer of 2013. Nothing fancy. I just asked some questions and waited to see what would happen. In the days to come, I was overwhelmed with comments and e-mails from readers, many anonymous, with bracingly honest answers often expressed through the tears of relentless and unnerving personal suffering. I didn't do a statistical analysis (who has the time, plus I don't know how), but the responses fell into five categories. 1. The Bible portrays God as violent, reactive, vengeful, bloodthirsty, immoral, mean, and petty. 2. The Bible and science collide on too many things to think that the Bible has anything to say to us today about the big questions of life. 3. In the face of injustice and heinous suffering in the world, God seems disinterested or perhaps unable to do anything about it. 4. In our ever-shrinking world, it is very difficult to hold on to any notion that Christianity is the only path to God. 5. Christians treat each other so badly and in such harmful ways that it calls into question the validity of Christianity--or even whether God exists. These five categories struck me as exactly right--at least, they match up with my experience. And I'd bet good money they resonate with a lot of us. All five categories have one big thing in common: "Faith in God no longer makes sense to me." Understanding, correct thinking, knowing what you believe--these were once true of their faith, but no longer are. Because life happened. A faith that promises to provide firm answers and relieve our doubt is a faith that will not hold up to the challenges and tragedies of life. Only deep trust can hold up."