...think or question things? Imagine a child saying "How did god make the earth and people in six days?"
These are some of the answers a christian parent might give so that their child doesn't ask any more questions:

You must have faith
faith is a virtue
god moves in mysterious ways
gods ways are unknowable to man
If it's in the bible then it must be true

god is all-powerful so he could do anything

Can you think of any other sayings christians tell each other to avoid having to think of an actual explanation?