The ancient civilization that revered a pantheon including Osiris and Isis is Ancient Egypt. This civilization believed in numerous gods who governed different aspects of life and the cosmos. Osiris, the god of the afterlife, resurrection, and fertility, and Isis, the goddess of motherhood and magic, played pivotal roles in Egyptian mythology. Their narratives are intertwined with themes of life, death, and renewal, significantly influencing religious practices and cultural identity in Ancient Egypt.