Question: what are the four passover cups?
Answer: The Four Cups represent the four expressions of deliverance promised by God Exodus 6:6–7: "I will bring out," "I will deliver," "I will redeem," and "I will take." The Vilna Gaon relates the Four Cups to four worlds: this world, the Messianic age, the world at the revival of the dead, and the world to come.