Why does the Calendar Utilize the Heptad[Seven] Numeral System?
In mathematics, it is common to use a binary system or base-2 numeral system, which represents numeral values using two different symbols; typically 0(zero) and 1(one).
And a quinary system or base-5 numeral system is used with five numbers; from 0 to 4.
A possible theory of a quinary system is because of five fingers on either hand.
It seems to be easy to use our fingers.
A decimal system refers to base-10 numeral system to perform arithmetic.
Moreover it is world-wide common to use the decimal currency system, where each unit of the currency is divided into 10 and 100 and sub-units.
Now, let’s think about the calendar.
Almost every day we look at it to check out the schedule or the date.
Usually it is thought to be originated in the age of Rome, however why is it made up of the heptad numeral system instead of the decimal (base-10) or quinary (base-5)?
The answer is that it was derived from the Bible; the history of the creation in Genesis.
In those days the decimal numeral system was widely used and even Rome had the distinctive numbers such as Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, Ⅵ, Ⅶ, Ⅷ, Ⅸ and Ⅹ.
Is it easy to apply the heptad system when they established the calendar? Definitely not!
If it had been used with the decimal numeral system, people would have felt more comfortable to calculate the date on the calendar. Only the heptad (seven) numeral system was used in the Bible when God created all things.
As it is written in Scriptures, God’s will is different from us and His thought is higher than us.
When the heavens and the earth were completed up to sixth day, God rested from all His work and blessed the seventh day and made it holy.
Because on it he rested from all the work of creating that he had done. (Genesis 2:1~2)
God surely wanted us to know about the Sabbath by appointing it ‘being blessed’ and ‘being holy’ and how much precious the seventh day is.
The seventh day is the memorial day of the Creators; Elohim God, Who show His power and splendor.
Therefore as far as we keep the Sabbath, remembering it, we receive the right to become children of God as the chosen people; being blessed and being holy!
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