Reason in no way discredits the account in Genesis. I am speaking of genuine and enlightened reason, not of the notions of people who think their own opinions always reasonable, whether they are so or not It is possible to interpret the Hebrew word for day as meaning a period of indefinite length. But there is no need to adopt this interpretation, and we can admit that Moses had in mind days as we know them, of twenty-four hours each. Did God, then, create and establish all things as they are within a period of six ordinary days? No. To arrest the attention and assist the memories of those for whom he wrote, Moses used the analogy of days, with mornings and evenings, as the people living at the time he wrote knew them. He used these days to typify the objective reality of God’s creative work during long periods of time. This is a purely literary device quite compatible with inspiration, and above all, when we remember that the main purpose of the author was to show that God is the Author and Lord of all things. In its religious significance, the account makes use of the seven ordinary sections of the week, bidding men worship God and rest upon the seventh. Scientifically, each day applies to a long correlative objective period, required for the slow astronomical and geological formation. In other words, Moses dedicated seven consecutive days in honor of God’s work, considered as having occurred in seven consecutive periods. And as, after the sixth day, God is described as having abstained from further labor, so after six days of labor man was to abstain on the seventh. Thus Moses impressed upon the people that the week must end in a day devoted to religious duties.
Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty