In Egyptian mythology, the god responsible for weighing the souls of the dead is Osiris. He presides over the afterlife and is associated with resurrection and judgment. During the Weighing of the Heart ceremony, the deceased's heart is weighed against the feather of Ma’at, symbolizing truth and balance. Osiris determines the soul’s fate, allowing entry into the realm of the blessed or condemning it if found unworthy. This mythological framework underscores the importance of morality and justice in ancient Egyptian beliefs about the afterlife.