The "sin" of Prometheus consisted in the fact that he helped humans despite the orders of mighty Zeus. For the Lord of Olympus had decreed that Fire should remain with the gods, and not be given to men. Thing is, Prometheus rooted for humans.
The Titan stole into Hephaistus' workshop, where the godly kilns burned and exquisite artifacts were being created for the heavenly dwellers, in order to take some charcoals with him. Some say he stole some sparks from the chariot of Helios (the Sun). Either way, he carried Fire in the stalk of a fennel plant, and made this life-saving gift to the human race.
In ancient Greek, the name Pro-Metheus means "He Who Has Foresight." Prometheus knew he would be punished for his theft; nevertheless, he went about his self-assigned task of protecting and helping mankind.
Prometheus is a Sufferer / Helper-of-mankind god.
Ages later, Herakles, son of Zeus, obtained permission from dad to finally free the Titan from his chains.
Comments (1)
https://owlcation.com/humanities/top-10-greekmyths
My source