The Hercules of ancient Greek mythology must have been Hercules, the son of Zeus, the king of the gods, and Alcmene, the princess of Thebes, but Hercules was a half-man and half-god.
Hercules' mother, Alcmene, was the wife of the Theban king Amphitryon, but because Zeus fell in love with this beautiful woman, he finally impregnated Alcmene Zeus's promiscuity, and the queen of heaven Hera was jealous. Hera disliked Hercules very much, and when Hercules was very young, she wanted to kill him.
However, the two poisonous snakes that were sent were strangled to death by Hercules, who was still a baby, which also indicated that Hercules was not ordinary, and later Hercules received the teachings of many famous teachers and grew into a brave and wise man.
As an adult, Hercules accepted twelve nearly impossible missions from King Eurystheus, from slaying the Nemean lions, slaying the hydra Hudra, cleaning the cowshed of Augeas, stealing the golden apple, and eventually becoming a true hero.
Hercules, while completing the "Twelve Difficult Tasks", passed by the Caucasus Mountains and found Prometheus in suffering. Prometheus, a member of the Titans, angered Zeus by stealing fire to give humans and imparting knowledge of civilization, was punished by Zeus and imprisoned on the cliffs of the Caucasus Mountains, enduring the pain of an evil eagle pecking at his liver every day.
Looking at the punished Prometheus, Hercules took pity on Prometheus and decided to rescue him, he shot the giant eagle that came to peck at Prometheus' liver every day with an arrow, and with his great strength smashed the chains that bound Prometheus, successfully freeing Prometheus from his long suffering.
Hercules was a righteous god.