To that end:
In order to understand why there is no contradiction between the concept of God as unity and God as Trinity, it is necessary to become better acquainted with both Kabbalah, and our own psychology, and to understand what it really means to be faithful to God.
Master Samael Aun Weor something very important regarding this subject, and he made it explicitly clear:
“I am just a signpost. Reach your own self-realization.”
When we break this down, what does this really mean? The goal of the path is to achieve self-realization, or put another away, to achieve Religare, religion, re-union. Re-union with what? With our own inner divinity. Master Samael did not want us to fall into the error of worshiping him as deity, because what he wanted for us is to reach self-realization, and that is only possible when we learn to rend cult to our own inner God. Each of us, every single consciousness is the child of a light that descends from the unity of God. Each of us is a particularity, an idiosyncratic emanation of that one light. Each of us have the capacity and the possibility of achieving self-realization. On the Tree of Life, that aspect that we associate with that spark of consciousness is called Tiphereth. But observe: the Tree of Life has many aspects. Below Tiphereth we find the different aspects relating with the actuation or agency of the consciousness in creation, such as the mind, emotion, the body. But, what about those aspects above?
Let us concentrate on the very top of the Tree of Life. Here we find three spheres, or sephiroth, with the names Kether, Chokmah and Binah. In Christianity, these three aspects are known as the Father, Son and Holy Spirit respectively. So, it is obvious that in this upper triangle, we have that concept of divinity that is called the Trinity.
Remember that each Tree of Life represents one unity; that is, each of us as consciousness, as Tiphereth have our own Trinity, our own apex of the Tree of Life. These three aspects, though representing different qualities or crystallizations of divinity, are in fact one. This is where the word trinity comes from: Tri-unity. Obviously, trying to use words to explain the qualities and unity of these three aspects is frightfully difficult, so to make it graspable, let us use an example with which we have more familiarity.
All things in creation are threefold in nature: the number three serves as the foundation of creation. For example, everything that is, is a trinity of matter, energy and consciousness. Likewise, in order for a child to be born, there must be three elements: the mother, the father and the sexual force.
“At the dawning of the great cosmic day, the First Logos, the Father, said to the Third Logos, the Holy Spirit, "Go, fertilize my spouse, the chaotic matter, the Great Mother, so that life (the consciousness of the Universe, the Son, the Second Logos) can arise; look into it." Thus, this is how the Father spoke, and the Third Logos reverently bowed, at the dawning of the aurora of creation.” - Samael Aun Weor
This same pattern is repeated in us: as intellectual animals, we are three-centered beings. That is, we have an intellectual brain centered in the head, and emotional brain centered in the heart and a motor-instinctual-sexual brain centered in the sexual organs and spinal column. Each of these brains is ruled by one of the aspects of the Trinity: Kether (Father) rules the intellectual brain, Chokmah (Son) the emotional brain and Binah (Holy Spirit) rules the motor-instinctual-sexual brain. We point to this fact to illustrate this: the intellectual brain, though obviously distinct from the heart and sex, forms one integral whole with the other brains. An intellectual brain without a heart or spinal column cannot live, likewise for each brain. Each brain relies on and facilitates the others in order to sustain life. Each brain may have a different role, serve a different function, but they are all equally indispensable. Your physical body is one, a unity, yet within it are many components. The same is true for our soul, our spirit, our divinity. The Father, Son and Holy Spirit each hold different roles and charges, yet they are one, a unity. The Trinity are not three separate deities any more than your brains belong to three separate individuals.
To rend worship to any of these three aspects of our own divinity is not to betray the unity of God; they are all aspects of the one divinity that we have within, that same divinity that Master Samael was pointing us towards with his quote.
So, if this is the case, if the Trinity of God is the same as the unity of God, what does it actually mean to betray God? What does it mean to take something before God? In order to understand this, we have to return to the concept of consciousness, and our current predicament, psychologically speaking.
The consciousness, it is true form, is an unblemished, pure, brilliant light, that is completely aligned with its inner divinity. The consciousness that is pure is undivided from its spirit, from its God. Unfortunately, this is not the case for us.
Due to both our free will, and our ignorance, we performed erroneous actions, that is actions that are not aligned with the will of God. The consequences of these erroneous actions was the corruption of that pure light of consciousness, and the redirection of that light away from divinity towards the negative psychological elements that such erroneous actions gave birth to. These negative psychological elements are what we call ego. In the Bible, one of the ways that these egos are referred to is with the term “idols.” Most people who have studied the Bible are familiar with the command to not worship idols, to not putt idols before God. Those idols that are being spoken of are not really external things or people (though these too count); what they are primarily referring to are the idols that we have created within, that all of us have fallen slave to, called desire, craving, aversion, in other words: ego. There is a phrase the Master Samael used often in his teachings, when referring to divinity: multiple perfect unity. What does this phrase mean? It is what we were speaking about before: those aspects of God that are distinct, yet not divided. The ego, however, is precisely the opposite. It is a multiple imperfect disunity. The ego is many, each ego has its own voice, its own intention and motivation, and none of them are aligned. The ego is the literal antithesis of God.
So, if we are truly concerned with the edicts of God, to not hold anything before God, what we must really be concerned with, is removing those elements from without ourselves that are contrary to the unity of God; what we must be concerned with is psychological death, and the purification of the light of our consciousness, so that we can return to the bosom of our God.