Light and Day

“And God called the light Day, and the darkness He called Night. And the evening and the morning were the first day” (Gen. 1:5). Are the days of the creation week natural days of twenty-four hours each? Or are they long periods of time? Shall we agree with one Bible commentator that because of the wide usage of the word “day we do not know the answer to this question, and furthermore that there is evidence in Scripture that we cannot know? Why do some consider these days as periods which are...