Why was Heracles twelve labors?

Heracles, a hero in Greek mythology, was tasked with twelve labors as a form of penance for killing his wife and children in a fit of madness sent by Hera. The labors were assigned by King Eurystheus, who sought to humiliate Heracles and showcase his supposed superiority. Each labor was designed to be nearly impossible, testing Heracles' strength, courage, and ingenuity, ultimately leading to his redemption and immortality. This myth illustrates themes of struggle, redemption, and the hero's journey.