Good Afternoon Brakelite,David. I also read a book many years ago how the number 7 is intertwined throughout scripture, and how it is used to designate completeness. It was a fascinating read, and was an enlightening revelation into the complexity and intricacy with which the scriptures were inspired. Hugely encouraging for a young Christian and ex Catholic in negotiating the concept of trusting in scripture as inspired and suitable for correction and instruction in righteousness.
But the bottom line of your argument is this. You still do not have a "thus sayeth the Lord" in support of your theory that the rest we have in Christ (and no-one denies we have that rest) is actually a replacement for the 4th commandment. There is no hunt anywhere that God has removed the 4th commandment from the tables of stone before transcribing them upon the human heart No more than loving your neighbor replaces the 7th or the 10th, 9th,5th, or the 6th or the 8th. No more than loving God with all your heart, soul, mind, and body replaces the 1st,2nd, or 3rd. They compliment each other and by fulfilling one you fulfill the others... Which I am sure you agree with. But there's not a word in scripture that says any of them, not even the 4th, is replaced by love. Love is how you obey the 9, and love is how you submit to the authority of the 4th.
What you have is no more than conjecture and assumption and human surmising and reasoning.
But you are correct in one thing. It takes faith to believe your assumptions. It is not faith in scripture or the word of God. But faith in your faulty interpretation. I think we are on much safer ground in simply believing the word of God as written. "Remember the Sabbath to keep it holy..." That 24 hour period in time that comes around with unfailing regularity, is still holy. There are numerous scriptural counsels that apply here...
KJV Isaiah 8:20
20 To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.
KJV Isaiah 58:13-14
13 If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the LORD, honourable; and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words:
14 Then shalt thou delight thyself in the LORD; and I will cause thee to ride upon the high places of the earth, and feed thee with the heritage of Jacob thy father: for the mouth of the LORD hath spoken it.
Let us be together as Christ placed us together in His Body = let us have the Mind of Christ, together.
#1 - i have never read any books on the number 7 and it's significance in the Bible.
#2 - What i post concerning this thread and related subject matter is coming from Scripture after years of prayer and study.
#3 - Before i speak on a subject i consider the Entirety of Scripture, Genesis to Revelation, and (hopefully) exhaust the realms of
Agreement/Harmony vs Disagreement/Incompatible within Scripture ITSELF.
PLEASE allow time between us in our discussion and "let us" take the 'Bullseye' approach as in Archery.
Thus our Focus and Goal is on the Center of the Target and we only can shoot one arrow at a time, aiming for the CENTER/TRUTH.