Tyndareus leading to a conversation with the three men on the role of humans in dispensing divine justice and natural law .
Tyndareus is orestes ' grandfather and Menelaus ' father - in - law comes onto the scene and roundly chastises Orestes .
Tyndareus , Orestes ' grandfather and Menelaus ' father - in - law comes onto the scene and roundly chastises Orestes , leading to a conversation with the three men on the role of humans in dispensing divine justice and natural law .