Final answer:
Jesus performs the miracle at the wedding feast at Cana to honor his mother, Mary, and to assist the wedding couple and their guests, marking the beginning of his public ministry by showing his divine authority.
Step-by-step explanation:
Jesus performs the miracle at the wedding feast primarily for the sake of his mother, Mary, as well as for the newlywed couple and their guests.
In the biblical account of the wedding at Cana, when the wine runs out, Mary approaches Jesus, hinting at the need for his intervention.
Though Jesus initially responds by stating that his hour has not yet come, he eventually acquiesces and turns water into wine, thus providing for the celebration and demonstrating his divine authority.
This miracle, seen as Jesus's first public sign in the Gospel of John, illustrates his compassion for human needs and sets the stage for his future ministry.