A cube, with all its three dimensions equal, is considered geometric perfection in classical mathematics and is a fitting tribute to the triune God who is ONE in all aspects of thought and purpose. A cube has six sides, six being the number of man in Bible code. Thus we see man in total unity with God, in the city of the New Jerusalem, even as we see that Jesus is both God and perfect man in one; God in the flesh.
Check out this description of the New Jerusalem, as seen in a vision by the Apostle John and written in the Book of Revelation, Chapter 21.
"Then I saw a new heaven and a new earth. The first heaven and the first earth had disappeared, and there was no sea anymore. And I saw the holy city, the new Jerusalem,[a] coming down out of heaven from God. It was prepared like a bride dressed for her husband. And I heard a loud voice from the throne, saying, “Now God’s presence is with people, and he will live with them, and they will be his people. God himself will be with them and will be their God.[b] He will wipe away every tear from their eyes, and there will be no more death, sadness, crying, or pain, because all the old ways are gone.”
The One who was sitting on the throne said, “Look! I am making everything new!” Then he said, “Write this, because these words are true and can be trusted.”
The One on the throne said to me, “It is finished. I am the Alpha and the Omega,[c] the Beginning and the End. I will give free water from the spring of the water of life to anyone who is thirsty. Those who win the victory will receive this, and I will be their God, and they will be my children. But cowards, those who refuse to believe, who do evil things, who kill, who sin sexually, who do evil magic, who worship idols, and who tell lies—all these will have a place in the lake of burning sulfur. This is the second death.”
Then one of the seven angels who had the seven bowls full of the seven last plagues came and said to me, “Come, I will show you the bride, the wife of the Lamb.” And he carried me away in the Spirit to a mountain great and high, and showed me the Holy City, Jerusalem, coming down out of heaven from God. It shone with the glory of God, and its brilliance was like that of a very precious jewel, like a jasper, clear as crystal. It had a great, high wall with twelve gates, and with twelve angels at the gates. On the gates were written the names of the twelve tribes of Israel. There were three gates on the east, three on the north, three on the south and three on the west. The wall of the city had twelve foundations, and on them were the names of the twelve apostles of the Lamb.
The angel who talked with me had a measuring rod of gold to measure the city, its gates and its walls. The city was laid out like a square, as long as it was wide. He measured the city with the rod and found it to be 12,000 stadia[c] in length, and as wide and high as it is long. The angel measured the wall using human measurement, and it was 144 cubits[d] thick. The wall was made of jasper, and the city of pure gold, as pure as glass. The foundations of the city walls were decorated with every kind of precious stone. The first foundation was jasper, the second sapphire, the third agate, the fourth emerald, the fifth onyx, the sixth ruby, the seventh chrysolite, the eighth beryl, the ninth topaz, the tenth turquoise, the eleventh jacinth, and the twelfth amethyst. The twelve gates were twelve pearls, each gate made of a single pearl. The great street of the city was of gold, as pure as transparent glass.
I did not see a temple in the city, because the Lord God Almighty and the Lamb are its temple. The city does not need the sun or the moon to shine on it, for the glory of God gives it light, and the Lamb is its lamp. The nations will walk by its light, and the kings of the earth will bring their splendor into it. On no day will its gates ever be shut, for there will be no night there. The glory and honor of the nations will be brought into it. Nothing impure will ever enter it, nor will anyone who does what is shameful or deceitful, but only those whose names are written in the Lamb’s book of life."
