Disappointment With God, Philip Yancey, Zondervan, pp. 189ff
1. Perhaps God keeps us ignorant because enlightenment might not help us.
2. Perhaps God keeps us ignorant because we are incapable of comprehending the answer .We remain ignorant of many details, not because God enjoys keeping us in the dark, but because we have not the faculties to absorb so much light Faith means believing in advance what will only make sense in reverse.