In Genesis 17:12, God commanded Abraham to circumcise baby boys on the eighth day of their lives. Why day eight? Is there any good, scientific rationale behind such a command?
The faith of each individual Christian rests upon the bedrock foundation of the Bibles inspiration. If the Bible is of human origin, then it logically follows that the facts and doctrines found therein are only as reliable as human knowledge can be. However, if the biblical records were provided by the Holy Spirit (2 Peter 1:20-21), then we have every reason to believe that the facts and doctrines recorded therein are free of those imperfections and blemishes that characterize all purely human efforts.
The Greek word used in the New Testament to express the concept of inspiration is theopneustos, and itself derives from two rootstheos, God, and pneustos, breathed (from pneo, to blow or breathe). Theopneustos, therefore, would mean God-breathed. The word implies an influence from without producing effects that are beyond natural powers. The proper view of inspiration often is referred to as being verbal (word-for-word) and plenary (complete). This concept suggests that men wrote what God directed, without errors or mistakes, yet with their own personalities reflected in their writings.
A close examination of the Bible reveals startling proof of its inspiration. Sometimes that proof comes in the form of prophecy (always minutely foretold and completely fulfilled). Sometimes the proof comes in the form of scientific facts that were placed in the divine record hundreds or thousands of years before they were known to the modern scientific mind. This brief article deals with the latteran important piece of scientific foreknowledge found with the biblical text that was completely unknown to man until fairly recently.
In Genesis 17:12, God specifically directed Abraham to circumcise newborn males on the eighth day. Why the eighth day? In 1935, professor H. Dam proposed the name vitamin K for the factor in foods that helped prevent hemorrhaging in baby chicks. We now know vitamin K is responsible for the production (by the liver) of the element known as prothrombin. If vitamin K is deficient, there will be a prothrombin deficiency and hemorrhaging may occur. Oddly, it is only on the fifth through the seventh days of the newborn males life that vitamin K (produced by bacteria in the intestinal tract) is present in adequate quantities. Vitamin K, coupled with prothrombin, causes blood coagulation, which is important in any surgical procedure. Holt and McIntosh, in their classic work, Holt Pediatrics, observed that a newborn infant has peculiar susceptibility to bleeding between the second and fifth days of life.... Hemorrhages at this time, though often inconsequential, are sometimes extensive; they may produce serious damage to internal organs, especially to the brain, and cause death from shock and exsanguination (1953, pp. 125-126). Obviously, then, if vitamin K is not produced in sufficient quantities until days five through seven, it would be wise to postpone any surgery until some time after that. But why did God specify day eight?
On the eighth day, the amount of prothrombin present actually is elevated above one-hundred percent of normaland is the only day in the males life in which this will be the case under normal conditions. If surgery is to be performed, day eight is the perfect day to do it. Vitamin K and prothrombin levels are at their peak. The chart below, patterned after one published by S.I. McMillen, M.D., in his book, None of These Diseases, portrays this in graphic form.
Dr. McMillen observed:
Moses information, as recorded in Genesis 17:12, not only was scientifically accurate, but was years ahead of its time. How did Moses have access to such information? The answer, of course, is provided by the apostle Paul in 2 Timothy 3:16Every scripture is inspired of God.
Holt, L.E. and R. McIntosh (1953), Holt Pediatrics (New York: Appleton-Century-Crofts), twelfth edition.
McMillen, S.I. (1984), None of These Diseases (Old Tappan, NJ: Revell).
Originally published in Reason and Revelation, July 1993, 13:55.
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