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Some say the answer to the seven day week is hidden among the stars, but so far, no astronomer has been able to train his sophisticated telescopes on the universe and find an explanation. Some say the answer is here on earth in the ceremonies of some ancient culture or custom, but so far, anthropologists have only a few clues.

Why is a week seven days long?

The question sounds simple enough until you begin to search for the facts. Then you soon learn that the road to discovery comes to an abrupt end. Read along with me and see whether you can solve the mystery.

First, a quick review from high-school science: the earth rotates on its axis once every 24 hours. We call that span of time “one day.” Next, the moon circles the earth about once every 30 days. So we call that span of time “a month.” Finally, the earth orbits the sun once every 365 days, and we call that span of time “a year.”

As you can easily understand, these divisions of time come about quite naturally, because they are based on the rotation of our earth and the orbits of the moon and the sun. These markers of time have been known and used by the human race since ancient times. But we are still no closer to answering the questions, Why a seven-day week? Why not a week of eight, nine, ten, or even twenty days?

Concerning this last question, anthropologists have uncovered some interesting clues. They have found that, indeed, some cultures have tried five-, six-, and eight-day weeks.

Some tribes in West Africa tried a week a mere four days long. During Napoleon’s time, the French government experimented with a ten-day week. But, like the others, these were replaced by the standard seven-day week. Today the question of why a week has seven days remains unanswered by scientists and scholars.

There is an answer, but strange as it may seem, it is found in only one place—the Bible. “By the seventh day God had finished the work he had been doing; . . . [And] God blessed the seventh day and made it holy, because on it he rested from all the work of creating that he had done” (Genesis 2:2, 3). So there it is, the origin of the seven-day cycle that we now call “a week.” However, we still haven’t answered the question of why God made this repeating cycle we know as a week. Some think it was His way of repeating over and over again to an often-forgetful human family that they should remember their roots.

human memorials

Perhaps this point can be better understood by looking at some of the extraordinary ways human beings have tried to leave a memory of themselves to the world. Egypt’s pharaohs erected huge monuments called obelisks hewn from a single piece of red granite in order to leave glorious details of their battles and other achievements chiseled deep into the polished stone surface.

The Greeks used marble and bronze to produce likenesses of their heroes, athletes, and philosophers. Their successors, the Romans, made a practice of preserving wax masks of ancestors and also hired sculptors to make personal statues to be displayed in front of their homes. Even today, shelling out several thousand dollars for an elaborate ceme­tery headstone is relatively common.

From the pharaohs to the present time, monuments, statues, and markers have had basically the same purpose—we humans want the world to remember us.

God’s memorial

Could the seven-day week be God’s method of helping us to remember our Creator?

Imagine that you had had the challenge of making a permanent marker to be set up at the beginning of time in the Garden of Eden that would remind people throughout eternity that they were to forever remember and respect their Creator. You could have had the message chiseled into a huge stone, but it would have been subject to the deteriorating effects of the weather.

Even if it survived the forces of nature, it would still have been subject, as were the pharaohs’ monuments, to human tampering. History tells us that a conqueror thought nothing of chiseling out a predecessor’s achievements and changing battle accounts to suit himself.

So it seems that a stone marker, no matter how large, would not do. After all, we’ve managed to lose something as important as the original copies of the Ten Commandments, which God wrote in stone with His own finger. Besides, what language could you choose that would be understood by all peoples for all time?

Considering all the difficulties, don’t you think God had the best way when He created the seven-day week? The idea of seven days strung together like beads on the strand of time is so unique that humanity can never claim the idea to be of natural origin that’s linked in some explainable way to the moon, sun, or stars. Furthermore, we can see that the seven-day week exists entirely because of the Sabbath day.

The Sabbath can be compared to the period at the end of a sentence. It tells you when to stop. It’s the period at the end of the week—after six ordinary days, the Sabbath punctuates the week and says, “Stop here.” The seven-day week exists only because God appointed the Sabbath day to mark its conclusion. All the other days of the week are so ordinary that the Bible simply numbers them as first, second, third, and so on (Genesis 1:5, 8, 13, etc.). The evidence seems abundant that the only source of the seven-day week is the supernatural work of God, the Creator.

Why holy time?

There’s another important aspect to the Sabbath God set aside at Creation: He blessed the day and made it holy. Several thousand years later, to make sure that human beings clearly understood the purpose and function of the Sabbath, God gave these instructions: “Remember the Sabbath day by keeping it holy. Six days you shall labor and do all your work, but the seventh day is a sabbath to the LORD your God. On it you shall not do any work, neither you, nor your son or daughter, nor your male or female servant, nor your animals, nor any foreigner residing in your towns. For in six days the LORD made the heavens and the earth, the sea, and all that is in them, but he rested on the seventh day. Therefore the LORD blessed the Sabbath day and made it holy” (Exodus 20:8–11).

Isn’t it puzzling that the only things that last are things we cannot touch, taste, hear, smell, or see? The apostle Paul called them the invisible things of this world. The seven-day week and the reason it exists—the Sabbath day—are invisible, unchangeable markers on the unseen stream of time. Their existence will continue on into the era when the earth is made new, and beyond. “ ‘As the new heavens and the new earth that I make will endure before me,’ declares the LORD, ‘so will your name and descendants endure. From one New Moon to another and from one Sabbath to another, all mankind will come and bow down before me,’ says the LORD” (Isaiah 66:22, 23).

The seven-day week and the Sabbath will always remain a mystery for some. But those who accept God’s invitation to enter that oasis in time understand that God’s holy Sabbath and the seven-day week began in Eden, continue today, and are a definite part of the future throughout eternity.

Why the Week Has Seven Days

by Marvin Hunt
  
From the November 2017 Signs