St. Augustine (de Fide et Symbolis) says: "This is the faith which in a few words is given to the Novices to be kept by a symbol; these few words are known to all the Faithful; that by believing they may be submissive to God; by being thus submissive, they may live rightly; by living rightly, they may purify their hearts and with a pure heart may understand what they believe."
Maximus Taurinus says: "The tessera is a symbol and sign by which to distinguish between the Faithful and the Profane."
There are three Degrees in Blue Masonry; and in addition to the two words of two syllables each, embodying the binary, three of three syllables each. There were three Grand Masters, the two Kings, and Khir-Om the Artificer. The candidate gains admission by three raps, and three raps call up the Brethren. There are three principal officers of the Lodge, three lights at the Altar, three gates of the Temple, all in the East, West, and South. The three lights represent the Sun, the Moon, and Mercury; Osiris, Isis, and Horus; the Father, the Mother, and the Child; Wisdom, Strength, and Beauty; Hakamah, Binah, and Daath; Gedulah, Geburah, and Tepareth. The candidate makes three circuits of the Lodge: there were three assassins of Khir-Om, and he was slain by three blows while seeking to escape by the three gates of the Temple. The ejaculation at his grave was repeated three times. There are three divisions of the Temple, and three, five, and seven Steps. A Master works with Chalk, Charcoal, and a vessel of Clay; there are three movable and three immovable jewels. The Triangle appears among the Symbols: the two parallel lines enclosing the circle are connected at top, as are the Columns Jachin and Boaz, symbolizing the equilibrium which explains the great Mysteries of Nature.
This continual reproduction of the number three is not accidental, nor without a profound meaning: and we shall find the same repeated in all the Ancient philosophies.
The Egyptian Gods formed Triads, the third member in each proceeding from the other two. Thus we have the Triad of Thebes, Amun, Maut, and Kharso; that of Philae, Osiris, Isis, and Horus; that of Elephantinē and the Cataracts, Neph, Sate, and Anoukē.
Osiris, Isis, and Horus were the Father, Mother, and Son; the latter being Light, the Soul of the World, the Son, the Protogonos or First-Begotten.
Sometimes this Triad was regarded as SPIRIT, or the active Principle or Generative Power; MATTER, or the PASSIVE Principle or Productive Capacity; and the Universe, which proceeds from the two Principles.
We also find in Egypt this Triad or Trinity; Ammon-Ra, the Creator: Osiris-Ra, the Giver of Fruitfulness: Horus-Ra, the Queller of Light; symbolized by the Summer, Autumn, and Spring Sun. For the Egyptians had but three Seasons, the three gates of the Temple; and on account of the different effects of the Sun on those three Seasons, the Deity appears in these three forms.
The Phœnician Trinity was Ulomos, Chusoros, and the Egg out of which the
Universe proceeded.
The Chaldean Triad consisted of Bel, [the Persian Zervana Akherana], Oromasdes, and Ahriman; the Good and Evil Principle alike outflowing from the Father, by their equilibrium and alternating preponderance to produce harmony. Each was to rule, in turn, for equal periods, until finally the Evil Principle should itself become good.