Hesiod's Theogony is arguably considered to be the scripture of the Ancient Greeks, being a guide to the world of the Greek gods, monsters, heroes, and many others. Before the Gods of Olympus dominated the world, titans held the power. Cronus and Rhea were the parents of Zeus and the other gods and they were dominating the world. There are constant battles for the holding of power in the Greek Mythology, it is transferred from one generation and then to another. Titans rebelled against Sky and Earth secured the power, Gods rebelled against the Titans and secured the power. Humans rebelled against Gods, but they aren't as fortunate as Gods. Prometheus' rebellion against Gods is probably the first rebellion of human beings and it is also the starting point of the development of human civilization. Prometheus is a Titan who stole the fire from Gods to the human beings so that they can have knowledge and advance.
Prometheus was clever enough not to alarm Zeus while stealing the fire. He gave it to human beings and told them to use it carefully and only during the day so that Zeus doesn't notice. Human beings fell into the error of using the fire at night and angered the disdainful Zeus and the all-knowing Zeus knew that the only creature who would be daring enough and could steal the fire from the Gods could be Prometheus. Zeus punished Prometheus by chaining him on a rock on a high mountain, appointing a vulture to eat his liver every day, and when the day ends his liver would recover so that the vulture would eat it for eternity. This particular origin story is the foremost example of the arrogance of Gods and the hardships of unfortunate human beings that dwell in the world of Olympian Gods. This origin story can also be read regarding the fact that knowledge is not always rewarding and the process of acquiring knowledge can be as painful as the torment that Prometheus endures eternally.