The birth of the world, and the rise of the Firstborn

In the beginning, there was nothing but a tiny sphere. It might have been very small, not much bigger than a tennis ball. However, inside this sphere, there was the entire cosmos to be, yet to be born, compressed by natural, un-living, and unthinking forces whose strength was beyond imagination, beyond what even the mightiest of deities could even think to muster. But although these forces were mighty, they weren't invincible, for eventually, they broke and failed. And so, the cosmos was born.
Born in an explosion of flames and thunder like nothing you can imagine, the once tiny sphere expanded and grew to immense size from one moment to the next, the once caged energy and matter surging forwards, wanting to split away from the rest, not wanting to get as close as they once were. It's said that this explosion, this "Big Bang", is still in practice happening to this day; it's just that the scale of the explosion had got so large that from the mortal perspective, reality is still and unchanging, and has been this way forever since.
Regardless if this is true or not, what's certain is that with the birth of reality, and its growing expansion, the stars that dot the skies were born. Most important among them is the Sun, the father of the world. Father not in the literal sense, for it's made of the same un-living and unthinking matter as the land, but bright as more than a billion wildfires. How this is the case is not the matter of this tale: what's important is that the light of the Sun is what nurtures the world, allowing the plants to grow strong and plentiful. It's The Sun that brings life to the world.
Speaking of the world, it was born after the Sun, out of the same materials, but either by chance or design, it came out different that the sun. It came out dull, solid, and dirty, not shiny, flexible, and clean. If we could somehow see it, it was a very different land, and one we couldn't call home, for it lacked everything we needed for our livelihoods. However, the first greatest miracle of creation happened: from cracks and quakes, came the water, filling up most and all but the tallest of lands. Then, once it stopped rising because it had come all off the rocks that once held it prisoner, the water for the first time came to see the Sun. It heated up, rose to the skies, and then fell as the first rains. And once the rains started to shower the land, the second and greatest miracle occurred: life appeared. It was simple yet resilient by neccecitu, it needed to be like since, when it appeared, there was nothing at first to eat. But for the newborn life, this was but the first challenge, and one it easily beaten. The first beings quickly found ways to feed their found hunger, either by looking at the sun or devouring others, and soon enough, all the living beings started to change and morph. This change is still happening to this day, and we can see it in how living things change and become better suited to their homes.
And once life was born, both in land and the life-giving waters, the Gods arrived. They had been born with creation itself and had been wandering creation ever since it grew and expanded. By the time they arrived, havig grown and matured themselves, they were but children drawn out to anything that catches their attention. And it was the miracle of life that drove them all in. From beyond, they watched astonished and impressed by the living things. But as they watched them, something unexpected happened: they became hungry.
Mighty growls affected the gods, and they found themselves squirming in newfound pain. In desperation, they looked at living things and tried to grab them to feed themselves, just like the animals fed on one another. But it was a futile struggle, for the gods, although forever tied up to reality, were not capable of touching and manipulating things directly, for they lived in a different state of being.
Desperation grew amongst the gods, their newfound fears and terror over their lives ending because they couldn't feed and stop the craving for hunger. Most died and vanished, writhing with pain you wouldn't wish upon even your greatest foe.
Yet, those that remained didn't give up, they didn't want to die, so they tried anything. It was in this trial and error, this quest of the gods, that they discovered something: they had powers, abilities, and energies which could be manifested in the world, and affect the living and nonliving things alike.
With this, they found they could finally grab and eat the living things, slowing down their hunger. But it wasn't enough. The hunger didn't stop: on the contrary, it grew more ravenous, at long last tasting morsels of newfound energy to replenish what they had lost as they explored the greatness of the cosmos. The gods kept dying and starving despite their mighty efforts.
Those that remain despaired for a moment: this was it? Was this their fate? No, they thought, they refused to disappear; they had found many interesting things, and their gnawing hunger would not stop them! So the gods kept trying, experimenting with their powers, trying to find ways to get more and more energy and sustenance out of the prey they caught.
Eventually, they discovered another thing: their powers were capable of not only catching living things but also morphing them into whatever new shape and/or form the gods wanted. They used this newfound knowledge to transform their prey, making them even more juicy and tasty. Following this, they found they could even create prey directly, either on their hands or onto the land. It was at this moment that a then young god decided to try something new: what if he caught a prey like him? He looked and looked across the world, yet didn't find a worthy quarry. So, he decided to create one instead.
The young god tried and tried, but no matter what he tried, he failed. And with every failure, he grew weaker and weaker, his energy and power leaving him as he got closer and closer to the end. Alas, the god didn't give up and in the end, achieved it, making it: the first mortal. It was a tough creature, adaptable and resilient. But above that, it could think, and it was intelligent enough to realize who had given it life. The first mortal looked to his maker, and thanked him for it.
This act, as simple as it was, became one of the most important in the history of Creation: for it was the first prayer ever, and its consequences were mighty indeed. Its maker felt full and satiated for the first time the hunger had begun; not only that, it could feel that he would be able to have some good time before requiring another prayer. The god, as thankful if not more so than his creation, decided to not just let the first mortal go free into the world, but also was more than happy to make new ones to accompany his creation. And these new mortals were just as thankful to their maker for the gift of life they had been given, so they prayed to the god. The young god not only received new energy with every prayer his creations recited to him, but he also became stronger and mightier than he had ever been. And feeling that the gifts of his creations deserved a proper reward, he decided to grant them all the mortals a bit of his power, allowing the receptors to achieve feats that were otherwise impossible to do. And so, the relationship between gods and their worshipers was formed.
The mortals quickly spread over the world, taming the fauna and flora, and triumphing over the predators and would-be competitors that might try to devour or outclass them. Their intelligence, combined with the occasional boost and powers granted by the maker, make it possible.
While his creations traveled and lived their lives in their home, the maker was happy to watch them go, curious as to what new things they might discover and build. All the while, his fellow gods were still struggling and starving, but the maker was unwilling to reveal his creations for fear that they might devour his precious mortals. To achieve this, he used his increased power to hide the mortals from the sight of the gods, while at the same time watching and remain passive as his kin died around him. This was the way of things until the joy and happiness his creations were having alongside one another, and the compassion and fraternity they had for even the weakest of their members, drove the god to desire to feel those same things alongside his equals. And so, the maker, at last, shared his creations with his kin, for the most part; He wanted to make sure no harm would ever truly come to his mortals, so he kept the secret of how he achieved their creation to himself. However, he did share the knowledge of the bargain the gods could make, so with that in mind, the remaining gods shared what bit of their remaining and waning power they could with the mortals.
And just like with the Maker, the mortals prayed thankful for the boons these "fellow kindred of The Maker" were giving, and those prayers saved the gods, ending their hunger and making them stronger than they were before.
Alas, by the time this had happened, only around a dozen deities remained alive, but that was enough. The gods quickly developed emotional bonds with their fellow kin, and from those bonds unions and godlings were born. As for the Maker, the other gods were extremely thankful for the gift he had brought them, far surpassing the slight anger they felt for him keeping it a secret and letting fellow gods starve into oblivion. They decided to crown him their leader and ruler, and so became known as The Grand Almighty, the Supreme Creator by both gods and mortals. As for the identity of their group, they just called themselves gods, but that was not to last forever, for eventually, they would be known by another, more distinctive one: They were The Firstborn.