The 12 Star of David Emblems of the 12 Tribes of Israel

The banner of Reuben was...in the center a painted mandrake.  (Numbers Rabba 2)

The banner...of Simeon...had the picture of Shechem. (Numbers Rabba 2)

The banner...of Levi had...the picture of the Urim and Tumim. (Numbers Rabba 2)

Judah's banner had...in the center the picture of a lion. (Numbers Rabba 2)

Issachar's banner...had in the center the picture of the sun and the moon. (Numbers Rabba 2)

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Zebulun had...the picture of a ship in the center. (Numbers Rabba 2)

Dan's banner had...an image of a serpent in its center. (Numbers Rabba 2)

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Gad's banner...carried the picture of a camp. (Numbers Rabba 2)

Naphtali's...picture in its center was that of a deer. (Numbers Rabba 2)

Asher's banner bore...The picture of an olive-tree in the center. (Numbers Rabba 2)

Joseph's banner...had the following pictures: Egypt. (Numbers Rabba 2)

Benjamin's banner had...the picture of a wolf in the center. (Numbers Rabba 2)

The banner of Reuben was red, and in the centre painted mandrake. That of Simeon was green, and in its centre it had the picture of Shechem. That of Levi had a tricolour, one stripe of white, one of black, and oneof red, and in the centre it carried the picture of the Urim and Tumim. Judah's banner had the colour of the sky, and in the centre the picture of a lion.

Issachar's banner was blackish, and had in the centre the picture of the sun and the moon. Zebulun had a whitish banner which carried the picture of a ship in the centre. Dan's banner had the colour of sapphire, and an image of a serpent in its centre. Gad's was a mixture of black and white, and carried the picture of a camp. Naphtali's had the peculiar colour of a pale reddish wine, and the picture in its centre was that of a hind. Asher's banner bore the colour of a precious stone, the ornament of a woman, and the picture of an olive-tree in the centre. The colour of Joseph's banner was of a deep black, and had the following pictures: Egypt, then an ox representing Ephraim, and a unicorn to represent Manasseh. Benjamin's banner had some of the colours of each tribe, i.e. twelve different colours, and the picture of a wolf in the centre.

 - Numbers Rabba 2, TALES AND MAXIMS FROM THE MIDRASH, by REV. SAMUEL RAPAPORT [1907]

Star of David = Star of Jesus Christ

The Star of David is made up of two equilateral triangles. One triangle is pointing down, and the other triangle is pointing up. The triangle that is pointing down is God's triangle and represents the Trinity of Soul, Body, and Spirit; or God the Father, God the Son, and the Holy Spirit of God reaching down to mankind. The triangle that is pointing up is mankind's triangle and also represents the trinity of soul, body, and spirit, but of mankind reaching up to God.

The Star of David represents:
 
1.  who Jesus Christ is - God and man together in a single physical form only exists in the physical person of Jesus Christ.  
2.  what Jesus Christ did - Through the Blood-Substitution Sacrifice of Jesus Christ, any person can be reconciled to God.  
3.  what Jesus Christ does - Through Jesus Christ, any person can have At-One-Ment with God.  
4.  what the "Born Again" Children of God are able to do through Jesus Christ - The Star of David is the symbol that fully represents the spiritual intercourse referenced in The Book of John chapter 17 where Jesus Christ is in God, the "Born Again" Children of God are in Jesus Christ, and thereby "Born Again" Children of God are in God through faith in Jesus Christ.

The "sign"/icon/symbol for the Messiah, the Greatest King, or King of Kings; who would come from the lineage of David, who would be fully God and also fully man throughout eternity can only be Jesus the Christ - the God/Man. The Star of David is and can only be the "sign"/icon/symbol for Jesus Christ.
        
Revelation 22:16 (NIV) "I, Jesus, have sent my angel to give you this testimony for the churches. I am the Root and the Offspring of David, and the bright Morning Star."

The Star of David is the Star of Jesus Christ.

- The Star Of David Is The "sign"/Icon/Symbol For Jesus Christ, by Steve D. Pardue; Cynet.com