God was never created. He is meta-cosmic in the sense that He transcends the created order and so is termed uncreated. All things in creation, the archangels, the angels, the cosmos and humankind are created by God.
Meister Eckhart puts it this way: "God is a Word, an Unspoken Word. Where God is, He utters His Word. Where He is not, He does not speak. God is spoken and unspoken. The Father is a speaking work, and the Son is the speech at work."
God “unspoken” is actually the Godhead or Divine Essence where “He does not speak” and where “He is not.” (According to Eckhart, "If I also say, God is a Being, it is not true; He is transcendent Being and superessential Nothingness.") God “spoken” is where “God is” and refers to His Self-revelation in the Divine Persons, starting with the Father and then through the Son, Holy Spirit. The Father is Pure Being – the speaking work – and the Son is the Logos of Being – the speech at work.
So God, in His absolute essence, transcends even the polarities of being and non-being, of existence and non-existence. This would have to be so if God is truly above all opposition. Existence and non-existence are still human attributes which God is not subject to, hence He neither exists, nor does not-not exist. That is not to say those attributes are not real, they just do not apply to Him in His purest essence, but through Him they are manifest.
Again, according to Eckhart:
"The Godhead in itself is motionless unity and balanced stillness and is the source of all emanations. Hence I assume a passive welling-up. We call this first utterance Being, for the most intrinsic utterance, the first formal assumption in the Godhead is Being. Being as essential Word, God is being, but being is not God. Now the origin of the Father is necessarily involved in this assumption of a passive welling-up. In other words, the Deity being in Itself intelligence, therefore, the divine nature steps forth into relation of otherness: other, but not another, for this distinction is rational, not real. Thus, the first Person arises in the Godhead passively, not from any active beginning. Hence its beginning is without property. The question is, what is the Person of the Father. I answer that it is Being in the Godhead, not according to essence but according to paternity, which is the formal notion specifically determining the Father."