Elemental Trumps & Hebrew Letters
There are three hebrew letters and therefore three Major Arcana cards that correspond with elements.
| 3 Mother Letters |  |
Tarot Keys | |||
|---|---|---|---|---|---|
 |
Aleph | Ox |  Air |
0. The Fool | |
 |
Mem | Water |  Water |
12. The Hanged Man | |
 |
Shin | Tooth |  Fire |
20. Judgment |
The order of the 3 Elemental trumps is in the same order as described in the Sepher Yetzirah. The colors and order given in the book The Golden Dawn.
The Golden Dawn: Volume II Book Three Adeptus Minor Ritual
by Israel Regardie pg 241.
In Kether is the root of the Golden Glory, and thence is the yellow reflected into Tipareth. In Chokmah is the root of Blue and this is reflected into Chesed; in Binah is the root of red, and this is reflected into Geburah.
Unto the Air is ascribed the Yellow colour of Tipareth. Unto the Water is ascribed the blue Colour of Chesed. Unto the Fire is ascribed the Red Colour of Geburah.
Sepher Yetzirah
The Qabalistic Tarot by Robert Wang (125-126)
From the Spirit he produced Air, and formed in it twenty two-words, the letters. Three are mothers, seven are double, and twelve are simple, but the spirit is first and above these.
From Air He formed the Waters and from the formless and void made mire and clay, and designed surfaces upon them, and hewed recesses in them and formed the strong material foundation.
From the Water he formed Fire and made for himself a Throne of Glory with Auphanim, Seraphim and Kerubim, as his ministering angels, and with those here he completed his dwelling …