The Leningrad codex is its first appearance with the Hebrew text and so on by it, yet some date it prior to that to Babylonian times and the 6th century BCE.
Placing of one triangle on top of another or a square one on top of the other means the sight and control over all…
When you change both triangles into a 3D format they form what is known as the Merkabah:- http://en.wikipedia.org/wiki/Merkabah
This relates to Ezekiel’s wheel, or the Chariot… The Merkabah is said to be the soul vehicle for transition after death and the vehicle used for rebirth and soul migration, both ideas also coined and understood in high level occult movements of the 18th century like the Golden Dawn… You will notice each of the heads of the beast by Ezekiel’s Wheel are also pictured on the Wheel card from the Toth Tarot deck created by a member of the Golden Dawn, there is good reason for this…
The beast with four heads is an Angel, four Angels rolled into one… these Angels are known as the Chayot Angels:- http://en.wikipedia.org/wiki/Chayot
The founders of the Golden Dawn had all been high level Masons, they adopted some of the rituals and symbols of the Masons.
When looking into why these creatures may have been used could be due to the locations of the points of the Star of David fall on upon the Zodiac calendar:-
(Scorpio is also an air sign and can be represented by a bird).
Then there is another religous picture that also shows the same again:-
In this image Jesus is sitting centre place and his hand is raised to the sign of the 12th house of the Zodiac, but what does the 12th house mean ?
One idea from here:- http://thezodiac.com/12thhouse.htm
But Here's the Low Down
The 12th house is also our connection with what the renowned Swiss psychiatrist Dr Carl Jung, MD monikered as the "collective unconscious." As such... the 12th house can also be our connection with dreams, imagination, visions, fantasy, romance, illusions, and redemption.
There's No Escaping It...
Further, according to archetypal astrologer, Dr. Karen Hamaker-Zondag, the 12th house may also likely refer to events and emotions that we experienced while still in our mother's womb and/or during the first year or so of our life. These are experiences occurring so early in life that we're virtually unable to consciously remember them happening. But the images and emotions connected with 12th house events nevertheless remain active within our psyche and continue to unconsciously effect us in our everyday life and in our relationships with other people.
At first glance... the effects and results (i.e. the baggage) of the 12th house may in some ways appear rather similar to the experiences of the 4th or 8th houses (discussed in other sections of this web site). However, generally speaking, our 12th house experiences took place and were formed at a time so early in our development that we were not able to be active participants in the events.
(When those who state the Tarot is evil and goes against religion it makes you wonder why the cards then are so interlinked to spirituality and the devine ?).
The Star of David is also said to contain the 7 angels of protection (One to each point and one in the centre place) and the four elements:-
Looking at the Masonic suggested roots and the temple of Solomon gives even more credit to the idea of symbolistic use being occultic in nature… Solomon called upon a race called the Djinn to build his temple, the Djinn according to Arabic text are a rave stripped of their physical form prior to the creation of man, the Djinn came from the smokeless fire and are invisible to man. However Solomon cast them into the bodies of his workers to build his temple, after their use he then cast them into brass containers and hurled them into a lake, the idea of Genies granting wishes comes from this tale.
The Masons have an image that looks a little like the above but doesn't feature the beasts heads to the corners, but has some other interesting features:-
(The Bee hive for example has 7 bee's... The Square and compass is seperated top and bottom, and each side of the sqaure and compass is said to be male and female, perhaps showing the symbol for fertility or birth, the vesica piscis is also the sign for birth... it all seems relivtive to the Star of David, the Freemasonic Compass and Sqaure each point relates to the same Zodiac signs).
Symbols meant more in the ancient world… Some feel in the occult that what we see as 2D symbols are actually 3D or above in construct and nature to powers and dimensions around us, and for these reasons I feel perhaps the hidden knowledge could be in plain view all around us, we just need to know how to see it.
All the above is my research and my opinion, please feel free to give feedback and enter debate.