What was Hercules instructed to do to repent for his crime?

Hercules was instructed to perform twelve labors as a form of penance for killing his wife and children in a fit of madness, which had been caused by the goddess Hera. These labors, assigned by King Eurystheus, included tasks such as slaying the Nemean Lion, capturing the Golden Hind of Artemis, and retrieving the Cerberus from the Underworld. Completing these challenges was meant to purify him and restore his honor. Each labor tested his strength, courage, and ingenuity.