The Day-Age Interpretation of Genesis 1 holds that each of the six days of creation represents a long, indefinite period of time rather than a 24-hour day. Each day may represent millions or billions of years, allowing the Genesis 1 chronology to be squared with the findings of modern science.
In its favor, advocates of the Day-Age Interpretation can point to the fact that, in Hebrew as in English, the word "day" can mean a number of things. It can mean "the daylight hours of the day," "a 24-hour day," or "an undefined period of time."
Sentences like the following three are thus equally possible in both English and Hebrew:
- "He went out during the day, but he came home again at night."
- "We’re open 24 hours a day, seven days a week."
- "Many Christians were put to death in the Emperor Nero’s day."
Strictly focusing on the word "day" (Hebrew, yom, which rhymes with "foam") it is possible that the six days of creation could be read as six long periods of time.
Advocates of the interpretation can even point to the fact that Genesis 2:4 uses the word yom in precisely this sense, speaking of "the day that the Lord God made the earth and the heavens."
But there are problems.
First, the Genesis 2:4 reference seems to be part of a different literary unit. We seem to have moved on from the recounting of the week of creation to zoom in on the specific creation of Adam and Eve. This means that the use of the word yom in 2:4 may not shed all that much light on its use in chapter 1. Further, since Genesis 1 depicted the creation of the heavens and the earth as a succession of six yoms (to stick an English plural ending on a Hebrew word; the Hebrew plural would be yomim, pronounced yo-meem) and since 2:4 depicts it as being created in a single yom, that’s at least prima facie evidence that yom is being used in different senses in these passages.
These are small matters, though. Now for some big ones.
The Day-Age Interpretation has a HUGE problem with the fact that the day/night cycle is set up on Day One, while the sun isn’t created until Day Four.
The ancients knew that the fact that the sun is shining is what provides daylight and makes it day, and that the absence of the sun is why the sky is dark at night. This is not something that you need Charles Darwin or even Galileo Galilei to tell you. It’s pretty blog obvious. We know the ancients understood it because some of them–like Origen and Augustine–commented on the fact that the sun was created after the day/night cycle and speculated on what this might mean for the nature of these days.
To get around this problem, advocates of the Day-Age Interpretation have tried proposing a number of theories, none of which are plausible readings of the text in Genesis.
For example: There was a mist or cloud or barrier or atmospheric condition of some kind that blocked clear vision of the sun until the fourth age but which let daylight seep through in a diffuse way for the first three ages. Well, that’s not suggested by anything in Genesis 1. It’s pure speculation designed to prop up a theory that is otherwise in trouble.
Or: The Day-Ages in Genesis 1 aren’t concurrent. They overlap with each other, so the sun would have been visible from the earth’s surface in earlier ages. (This variant also can get around the problem of how birds and fish get created on Day Five even though land animals aren’t created till Day Six. Modern science suggests that the order was fish > land animals > birds, which doesn’t square with Genesis 1 unless the days overlap.) Again, this is not suggested by ANYTHING in Genesis 1. It’s pure speculation designed to prop up a theory that is otherwise in trouble.
But even if the sun-on-Day-Four problem could be solved, there’s another LARGER problem which is completely insoluble as far as I’m concerned.
It’s this: At the end of each day in Genesis 1 the text says a variant on, "And there was evening and there was morning, a second day" (the last bit of the phrase is what changes).
Evening and morning were the two cusps of the 24-hour day in Hebrew time reckoning. The placement of evening first also represents Hebrew time reckoning, since the Hebrew day began at sunset, so evening came before morning. "There was evening and there was morning" is a kind of hendiadys that expresses the whole of the Hebrew day. It’s like saying "day and night" in English–a way of gesturing to the whole of a 24-hour day by naming the two opposing parts of it.
That’s why the phrase is then followed by "one day, "a second day," "a third day," and so on. The evening and morning hendiadys emphasizes the two parts of each of the six days of creation.
Now here’s the problem: The evening and morning hendiadys clearly points us in the direction of a 24-hour day, and the Day-Age Interpretation has an INSURMOUNTABLE problem in that this hendiadys would NEVER have been used to describe a long, indistinct period of time. Long periods of time (especially ones millions or billions of years long) are not divisible in terms of a single evening and a single morning–not by anything other than the interpreter’s fiat, at any rate. This was NOT a part of ancient Hebrew time reckoning, and it would have occurred to NOBODY in the ancient world.
And so I think the Day-Age Interpretation is demonstrably false. It simply is not a credible reading of the text in literary terms.