rationalskepticism.org

Mark Smith (atheist) confirmed Craig’s position when he asked:

Dr. Craig, for the sake of argument let’s pretend that a time machine gets built. You and I hop in it, and travel back to the day before Easter, 33 AD. We park it outside the tomb of Jesus. We wait. Easter morning rolls around, and nothing happens. We continue to wait. After several weeks of waiting, still nothing happens. There is no resurrection- Jesus is quietly rotting away in the tomb.

Craig told him he would still believe in the resurrection of Jesus, due to the “self-authenticating witness of the Holy Spirit.”

William Lane Craig, Reasonable Faith wrote:
"As long as reason is minister of the Christian faith, Christians should adhere to it."

"We can know the truth, whether we have rational arguments or not."

"Even though we are given no good reason to believe, and many persuasive reasons to disbelieve, even then the disbeliever has no excuse. Because the ultimate reason he does not believe is that he has rejected deliberately God's holy spirit."

Interviewer:
What advice would you give to someone who's experiencing serious doubts?

William Lane Craig:
First of all, I think they need to understand the proper relationship between faith and reason. The way and which that I know Christianity is true is, first and foremost, on the basis of the witness of the Holy Spirit in my heart. This gives me a self-authenticating means of knowing that Christianity is true, wholly apart from the evidence. And, therefore, if in some historically contigent circumstances the evidence that I have available to me should turn against Christianity, I don't think that contraverts the witness of the Holy Spirit. In such a situation, I should regard that as simply the result of the contigent circumstance that I am in, and that if I were to pursue this with due diligence and with time I would discover that—if I can get the correct picture— the evidence would support exactly what the witness of the Holy Spirit tells me. So, I think that's very important to get the relationship between faith and reason right, otherwise—what that means is—our faith is dependent upon the shifting sands of evidence and arguments which change from person to person, place to place and generation to generation; whereas the holy spirit in his testimony gives every generation and every person immediate access to the knowledge of God and the truth of Christianity that's independent of the shifting sands of time, place, person or historical contigency.

William Lane Craig:
Secondly, what I think follows from that-what this means is that- doubt is never simply an intellectual problem, there is always a spiritual dimension to doubt as well. There is an enemy of your souls, Satan, who hates you intensely and who is bent on your destruction and who will do everything in his power to see that your faith is destroyed.

And, therefore, when we have this intellectual doubts and problems, we should never look at them as something that is spiritually-neutral or divorced them from spiritual conflict that we're involved in, rather we need to take these doubts to God in prayer, to admit them honestly, to talk to our Christian friends about them, to not stuff them or hide them. We need to deal with them openly and honestly, to talk to people about them and seek God's help. I think, frankly, no human being in this lifetime will ever have all his questions answered. There's always going to be a question bag on the shelf of unanswered questions that we haven't had time to deal with in this lifetime. So, the key to having victory in the Christian life is not having all your questions answered. The key to victory is how to live with unanswered questions. That's the real key. How do you allow answered questions not to become destructive doubts and I think part of the secret to that would be by cultivating your spiritual life, engaging in spiritual disciplines: prayers, christian music, sharing your faith, etc.