Why did God create seven days but name only one day?

Because, simply put, it means that while six days are symbolically assigned for man or the world under man, the last or the final seventh-day is set apart as God’s Day.

For those who do not know, God created this world in a day by day and symbolic progression of six days.  The seventh day was blessed, declared holy and set apart as His day, the Day of Rest (Gen 2:3).

For the last and the final day symbolizes the eternity that was before God created time and that which is once again due to come after time is completed or is no more.

Yes, the introduction of days is basically the introduction of time. Therefore, symbolically, God only names the seventh day and calls it the Sabbath (Ex 20:8) and leaves the six days to be named and used by man as he willed.

Sabbath on the other hand is not given to man to misuse or desecrate.  It is a veritable sin against God!  This is the reason as it states in Mk 2:27, “The Sabbath was made for man, not man for the Sabbath.”

UNDERSTANDING TIME OR FINITY:  The creation of this world in six days symbolizes the time assigned for the regeneration of mankind from sin, curses and death after which God will re-create all things anew (eg. Rev 21:5).

Which means God assigns a prescribed time for man.  Read Dan 9:24. “Seventy ‘sevens’ are decreed for your people and your holy city to finish transgression, to put an end to sin, to atone for wickedness, to bring in everlasting righteousness, to seal up vision and prophecy and to anoint the Most Holy.”

Just as God created the world in six days, He gave over to man this period of six days translated into a prescribed time-frame arrived at by multiples of six.  So that at the end of every six, the seven reins in the Rest of God (just as it was following His creation work), thus progressing on until the Eternal Sabbath Rest is achieved.  For example, note how Jesus having accomplished His divine purpose on the cross, rested on the seventh day (Jn 19:42, Lk 23:54 & Jn 20:1).

The seventh day, as aforementioned, symbolizes the Eternal Sabbath-rest of God.  Read Dan 9:25-27, “Know and understand this:  From the issuing of the decree to restore and rebuild Jerusalem until the Anointed One, The Ruler, comes, there will be seven ‘sevens,’ and sixty two ‘sevens’.…….”

Which means a time-frame of total sixty nine ‘sevens’ will be given over to man for repentance and atonement, after which it will be impossible for man to reconcile with God.  Only the elect among them will survive the terrible time of utter darkness which will follow soon afterwards.

Therefore the seventieth ‘seven’ will be entirely the Lord’s.  (Just like it is symbolized in the Mosaic law by assigning not only the seventh day but also every seventh year as the Sabbath year, which progressively culminated into the fiftieth year and is celebrated as the Year of the Lord or the Jubilee Year.)

Because, even though the above mentioned seventieth ‘seven’ will begin with the revelation and end of the ultimate lawless one, it will climax into the final ‘seven’ which will see the Second Coming of the Son of God and His reign on earth of a thousand years.  It will then herald in the Eternal Sabbath Rest of God, thus finally paving the way for the perfect and complete regeneration of mankind and the world.

P.s:  Read the follow up article following next on why we should honor the Sabbath and not desecrate it like the churches.