We know of God by His ‘signs’. His Essence is beyond human understanding to grasp like a painting cannot comprehend its painter but the painting itself is proof the painter exists.
So as I said, no one has a coherent concept of a real god, one with objective existence and objective qualities. It follows, does it not, that to speak of a real God is to speak of something no one knows anything about?
To test this, what is the "painting itself" to which you refer? The universe? If so, why would you want to explain the existence of the universe in terms of magic when we have the researches of evidence-based physics and cosmology to form an understanding of what happened?
Physics simply describes the things that make up the universe and, in abstract terms, the uniformities of behavior we observe in their interaction.
But you want to say that a sentient being pre-existed the universe and willed it into existence.
Physics is a description of real things. By contrast, a real god is an incoherent concept; all the examples are of one or more imagined beings.
The problem of origins won't go away either. My own hypothesis is that mass-energy pre-existed the universe, and formed the contents of the Big Bang. For you, however the problem is enormously complicated by the attribution of sentience, power and purpose to God. Where, and from what origin, did such a being evolve?
And if the universe exists for Man, why is the process so grossly inefficient that it requires septillions of planets and a shade under 14 billion years before H sap sap even comes to exist?
The greatest proof God exists are His Manifestations which appear from time to time Who reflect His attributes such as love, mercy, justice, compassion and so on. These Educators taught humanity how to reflect God’s attributes. Without these Educators we would be incapable of expressing love, Justice, compassion and so on and would simply be like wild animals roaming the planet with no spiritual ideals or knowledge like the animals.
I'm afraid that doesn't stack up either. Love is functional, an evolved set of behaviors relating to surviving, bonding and breeding, and in addition to reinforce first family, and then social, bonding. Nearly all primates are social, and operate in their societies by forming one-to-one relationships with others of their group ─ your place in the peck order relates strongly to your ability to mate and to breed. The larger the primate brain, the more such one-to-one relationships an individual can maintain, and of the primates, humans have the largest of all, as you know. These entail aspects of male and female group bonding, friendships and trust, cooperative action and so on.
Mercy and compassion are aspects of human behavior arising from our mirror neurons, which enable us to see the world through, as it were, the eyes of others. (So for instance, forms of psychopathy are connected to the absence, or small number, of mirror neurons in particular individuals.)
Justice is an evolved judgment, which even very small children display ─ a dislike for the one who harms, and a natural approval of fairness and reciprocity. The studies are there for you to read.
So God seems to be duplicating, or claiming the credit for, the work done by physics and evolution.
These attributes of God are eternal, never changing and have no beginning or end. The entire universe exists because of the law of love. The elements are held together by the law of attraction. These attributes of God are absolute truths never changing and always existing. If God withheld His love for us for a second all existence would cease to exist.
As I said, 'truth' is a quality of statements; attributes as such can't be 'true' or 'false', only reports about them.
As for God being a god of love, people have been asking for thousands of years how all the world's disorders can exist, war, famine, disease, poverty, unfairness, might-is-right, money-is-power, it's-not-what-you-know-but-who-you-know, and so on. You've likely come across the statement attributed to Epicurus to this effect ─
Is god willing to prevent evil, but not able? Then he is not omnipotent.
Is he able but not willing? Then he is malevolent.
Is god both able and willing? Then where does evil come from?
Is he neither able nor willing? Then why call him god?
What's the answer? Why would a god of love sit on his hands through war, famine, plague, tsunami, volcano, accident and so on? Why would he allow genetic malformations?
It's fair to say that God neither says nor does, no?
Baha’u’llah mentioned another absolute truth when He wrote of God’s Religion.
“This is the changeless Faith of God, eternal in the past, eternal in the future”
If God isn't real, that's not a statement about reality, however attractive as a reassurance or an aspiration.
The purpose of man’s existence is to know God.
The existence of H sap sap has no purpose, seen from the outside. But since we're an evolved species, the core of our conduct is survival and breeding. As far as the big picture goes, the rest is incidental. To give you the perspective, the only reason you and I exist is because
every single one of our ancestors lived long enough to breed, in a line unbroken across 3.5 billion years.
God always was and is and always will be is another absolute truth.
If I might make a respectful observation, you constantly use words long on connotation and not much else; it may well be that your thinking will be greatly clarified when you start pinning down the actual denotations of the words you use. For instance, 'truth' IS a quality of statements, not a thing in itself or a property of objects or beings; and without an objective test for truth, the word has no useful meaning: "I like it!" may be personally satisfying but it advances our understanding of the world not an inch.