Long before Newton ever discovered that white light was simply a merger of colors, God had already made it so, as commanded to the Israelites through Moses in the book of Exodus (written ~1445 – 1405 BC):
"You shall make a lampstand of pure gold. The lampstand shall be made of hammered work: its base, its stem, its cups, its calyxes, and its flowers shall be of one piece with it. And there shall be six branches going out of its sides, three branches of the lampstand out of one side of it and three branches of the lampstand out of the other side of it; three cups made like almond blossoms, each with calyx and flower, on one branch, and three cups made like almond blossoms, each with calyx and flower, on the other branch—so for the six branches going out of the lampstand. And on the lampstand itself there shall be four cups made like almond blossoms, with their calyxes and flowers, and a calyx of one piece with it under each pair of the six branches going out from the lampstand. Their calyxes and their branches shall be of one piece with it, the whole of it a single piece of hammered work of pure gold. You shall make seven lamps for it. And the lamps shall be set up so as to give light on the space in front of it. Its tongs and their trays shall be of pure gold. It shall be made, with all these utensils, out of a talent of pure gold. And see that you make them after the pattern for them, which is being shown you on the mountain.” (Exodus 25:31-40)
The six lamps (three on each side) surround the one central lamp in the middle. This parallels the observations that we find in the color spectrum: 3 + 3 + 1 = 7.
It’s no coincidence that the visible light color spectrum is made up of one (1) ultra-color (pure white) which contains three (3) primary colors (red,yellow,blue), which when combined create three secondary colors (orange,green,violet) for a total of seven (7).
It should be noted that we perceive color (more on that later); therefore, it’s easy to identify new colors, e.g., indigo—a tertiary color—based on how our brain interprets what we see. Our human eyes only have three (3) cone-shaped photoreceptors: red, green, and blue; more on that later, as well!
Interestingly enough, when you place the primary, secondary and tertiary colors on a wheel, it adds up to twelve (12), another significant number that we’ll dive more into later.
Right from creation in Genesis 1, God established the seven days of the week, with the seventh day being the Sabbath (a day of rest). Like the color spectrum, the seven days of creation speak to God’s perfection through a beautifully designed number: 142857, also known as a cyclic number.
How did we come up with 142857, you might ask? Well, if we take the Sabbath day (the day that God rested) and divide it by the number of days in a week (1/7), we get the 0.142857..., where 142857 keeps on repeating infinitely.
The name cyclicnumbercomes from the fact that if you multiply this 6-digit number by 1 through 6, it produces a number with the same digits in a different order:
We can easily parallel this with the first six days of creation (followed by the seventh day of rest) and the six colors of the spectrum that result in pure white light.
Ultimately, our infinite God accomplished his PERFECT will in everything He created, right into infinity. You can find the number 7 intelligently designed into many things (including the seven wavelengths of the electromagnetic spectrum), and it’s referenced numerous times in the Bible. One such reference is the seven spirits of God, as found in the prophecies about Jesus in the book of Isaiah:
And the  Spirit of the LORD shall rest upon him (Jesus), the  Spirit of wisdom and  understanding, the  Spirit of counsel and  might, the  Spirit of knowledge and the  fear of the LORD. (Isaiah 11:2)
The seven spirits of God come up again in Revelation, just after God finishes addressing the seven golden lampstands representing the seven churches and their seven angels (Revelation 1-3), and prior to God addressing the seven seals, the seven trumpets, the seven plagues, and the seven bowls of God’s wrath (Revelation 5-17):
At once I was in the Spirit, and behold, a throne stood in heaven, with one seated on the throne. And he who sat there had the appearance of jasper and carnelian, and around the throne was a rainbow that had the appearance of an emerald. Around the throne were twenty-four thrones, and seated on the thrones were twenty-four elders, clothed in white garments, with golden crowns on their heads. From the throne came flashes of lightning, and rumblings and peals of thunder, and before the throne were burning seven torches of fire, which are the seven spirits of God, and before the throne there was as it were a sea of glass, like crystal. (Revelation 4:2-6)
There are many studies on the parallels between the seven spirits of God and the seven colors of the visible light spectrum, but I haven’t found any conclusive evidence as to the specific similarity. I’m quite sure that there is a parallel (since color is VERY important to God – just read the books of Exodus and Numbers!), but for the sake of not speculating, I will not go into detail. I believe Brian Chilton does a good job of referencing the biblical symbolism of colors, so that may be a fair place to start. (There are lots of other references out there as well.)
Getting back to the specifics of the color spectrum, one other very obvious observation is that the three primary colors (red, green, blue) are responsible for creating the secondary colors. This is in direct parallel to the work of the Father, the Son (Jesus), and the Holy Spirit.
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If you were dying and you had one last chance to talk with the people that matter most to you, what would you say? If everything was on the line, and nothing was left on the table, what wisdom would you impart? My name is Ray Majoran, and this book is my last lecture.