Introduction
"The day-age (progressive) creation account is non-literal and contradicts the clear teaching of Genesis." I hear or see this complaint quite often, although the statement is incorrect regarding both accusations. I take all of the biblical creation accounts literally. Nothing is symbolic. The Hebrew word yom1 has three literal meanings - a 12-hour period of time (sunrise to sunset), a 24-hour period of time from sunset to sunset (the Hebrew day), and an indefinite period of time. The day-age interpretation of Genesis does not require the use of symbolism to explain the creation account.
The proper interpretation - from Genesis
A simple way to determine if the days are 12 hours, 24 hours or an indefinite period of time is to examine each of the days and see what the Bible says about the time it took for those days to happen. We will examine each day and see if Genesis indicates which interpretation is correct. In this page, we will consider the text of Genesis only and not rely upon any scientific information, about which we can not be absolutely sure of its accuracy.
12-hour days?
Let's look at the first definition of yom - the 12-hour period (from sunrise to sunset). A very casual glance at the text shows that yom could not be referring to daylight only. On the first day, Genesis 1:5 states that there was both daylight and night.2 We can eliminate the "daylight" definition of yom as being consistent with the Genesis text. The days of Genesis must have been longer than 12 hours.
24-hours days - Day 1
Next, let's examine the Genesis days to see if they fit the 24-hour interpretation. Many things happen n the first day. God created the entire universe, including the earth. God also began the period of daylight and night on the earth. Although science tells us that these events took much more than 24 hours, there is nothing in the biblical text that would clearly indicate that the day could not be 24 hours long.3 The 24-hour interpretation passes the test for the first day.
24-hours days - Day 2
On the second day, God separated the waters above the earth from those on the surface of the earth.4 Since there is no timetable listed for this period of time, it could be 24 hours in length. The 24-hour interpretation passes the test for the second day.
24-hours days - Day 3
On the third day, God formed the land out of the seas. There is no time frame given for the formation of the land and seas. Some time after the land was formed, God created the plants:
Then God said, "Let the earth sprout vegetation, plants yielding seed, and fruit trees bearing fruit after their kind, with seed in them, on the earth"; and it was so. (Genesis 1:11)
And the earth brought forth vegetation, plants yielding seed after their kind, and trees bearing fruit, with seed in them, after their kind; and God saw that it was good. (Genesis 1:12)
The text clearly states that the earth "sprouted" the plants (the Hebrew word deshe, usually refers to grasses). The Hebrew word dasha indicates that the plants grew from either seeds or small seedlings in order to have "sprouted." In addition, these plants produced seeds. The Hebrew word here is zera, which is most often translated "descendants." This makes matters very difficult for the 24-hour interpretation. Not only do the plants sprout and grow to maturity, but produce seed or descendants. There are no plants capable of doing this within a 24-hour period of time. Things actually get worse for this interpretation. Genesis 1:12 clearly states that God allowed the earth to bring forth trees that bore fruit. The process by which the earth brings forth trees to the point of bearing fruit takes several years, at minimum. God did not create the trees already bearing fruit. The text states clearly that He allowed the earth to accomplish the process of fruit bearing through natural means. Because the process of the third day requires a minimum period of time of more than 24 hours, the Genesis text for the third day clearly falsifies the interpretation that the days of Genesis one are 24-hour periods of time.
24-hours days - Day 6
Day 6 is also a problem for the 24-hour interpretation. During this day, God planted a garden in Eden, and caused the garden to sprout and grow. Then God brought all the birds, cattle and wild animals to Adam to name. God put Adam to sleep, took a part of him and formed Eve (Genesis 2:21-22). Adam's response to Eve's creation was "at last," indicating that he thought the day was very long indeed.
Conclusion
We are left with only one interpretation for the days of Genesis one. The literal, clearly indicated, meaning of yom for Genesis one must be an unspecified, long period of time. This is why I believe that the day-age Genesis one interpretation is the only biblically sound interpretation for the creation of the world and life on it.
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