To define YAHWEH, which is SPIRIT, HE is the ULTIMATE SOURCE, the INFINITE IMMACULATE SUBSTANCE, the INCOMPREHENSIBLE and INSCRUTABLE PRINICIPLE, the ALL IN ALL, an ETERNAL SELF EXISTING DEITY without SHAPE or FORM.
Because of this INCOMPREHENSIBLE and INSCRUTABLE state of being, in necessitated him, in order for his creatures to understand him as he really is and actually exists, to take on an angelic shape and form known as Yahweh Elohim (The first cause of all creation). It was in this state that Yahweh Elohim Created all things within himself by himself (Father, Word, Holy Spirit or Supernal Nature).
YAHWEH ELOHIM YAHSHUA was MANIFESTED in a Body as stated by the Apostle Paul in his epistle to Timothy saying, "WITHOUT Controversy, GREAT IS THE MYSTERY OF HOLINESS, YAHWEH was Manifested in the flesh, declared in the SPIRIT, seen of Angels, preached unto the Gentiles, believed on in the World, received up into Glory" (1 Timothy 3:16). Yahweh is a Unity, one creator as it states in Deuteronomy 6:4, "Hear O Israel, Yahweh our Elohim is a Unity."
The 25th chapter of Exodus, verses 1-9 state "1 And Yahweh spake unto Moses, saying, 2 Speak unto the children of Israel, that they bring me an offering.....8 And let them make me a sanctuary (The Tabernacle); that I may dwell among them. 9 According to all that I shew thee, after the PATTERN of the TABERNACLE (Most Holy Place, Holy Place, Court Round About--One Tabernacle), and the pattern of all the instruments thereof, even so shall ye make it." In the 40th verse of the same chapter, Yahweh repeats the instruction to Moses by saying "And look that thou make them after their pattern which was shewed thee in the mount.
Although those instructions may seem insignificant to some, they prove to be one of the greatest keys ever given to mankind. Just as Yahweh Elohim Yahshua are one, everything that he therefore transforms into will bear the same supernal nature--The Father, Word, and Holy Spirit and these three are one.
Through the dispensations and ages, Yahweh has asked men to build just three things. The Ark, The Tabernacle, and The Temple.
Noah was instructed to build an Ark (Genesis 6:13-16) which consisted of an upper deck, middle deck, and a lower deck, yet this was but one Ark. The Tabernacle that Moses was instructed to build consisted of The Most Holy Place, The Holy Place, and the Court Round About, yet was just one Tabernacle. Solomon, the Son of David, was instructed to build a temple. The temple consisted of the porch, oracle, and holy of hollies, again, just one temple. Keep in mind that all things are created to reveal his Supernal Nature--The Father, Son, and Holy Spirit, yet just One Yahweh.
Examples of Yahweh's Supernal Nature or Three Fold Pattern:
The above chart notes that even the smallest building block of matter, the atom, is three fold but just one atom. Along with the smallest building block of your natural body, a cell, also being three fold but just one cell.
Since Yahweh is the source and substance of all things visible and invisible, and can only create by the pattern of himself (A Unity). Time and space will not permit every comparison in detail, but the examples above are a few of the most important comparisons and correlations that will reveal the KEY that UNLOCKS the MYSTERY OF YAHWEH.
Given the amount of proof manifested throughout all that is visible and invisible, one can only come to the conclusion that Yahweh Elohim Yahshua is a Unity.