Throughout the seder, we will drink four cups of wine (or grape juice, or whatever meaningful beverage you've chosen).  Each time we will say the blessing over the wine, thanking G-d (who in Hebrew is also called "Adonai" and "Elohim") for grapes, the fruit of the vine.  The earliest talmudic commentary on the four cups of wine doesn't actually have anything to do with drinking the wine.  Instead, it says "And they should give the poor person not less than four cups of wine."   As we progress through the seder, we ask ourselves: "What must we do so that all people can be free?".


haggadah Section: Kadesh