Four cups. Not three, not five - though a fifth cup sits on every table all the same, poured for a guest who has not arrived. The number four was not an accident or a folk memory preserved without thought. Around 200 CE, when the rabbis assembled the Mishnah and set down the rules for the Passover night in tractate Pesachim, they made a decision: each adult at the seder would drink four cups of wine, and the evening would turn on those four cups the way a door turns on its hinge.
It is worth pausing on that. The rabbis were writing in the shadow of the Temple's destruction. The great annual pilgrimage to Jerusalem, the paschal sacrifice, the singing of the Hallel in the Temple courts - all gone. What remained was the household, the table, the family, and the obligation to tell the story. The Mishnah's genius was to turn that stripped-down setting into a legal and liturgical structure complete enough to carry the full weight of Passover. Four cups gave the night a spine.
The record
Mishnah Pesachim chapter 10 (c. 200 CE, edited under Rabbi Judah ha-Nasi) is the foundational source for the seder's order. It rules that even the poorest person in Israel must drink four cups of wine on Passover night, and the community fund must supply them if needed. The passage establishes the four cups as obligatory rather than optional - a ruling preserved in the Jerusalem and Babylonian Talmuds, both of which extend and debate the Mishnah's logic across many folios. The text is on Sefaria at Mishnah Pesachim 10.
What do the four cups mark? The Mishnah itself does not say. The Talmud fills the silence with competing answers, and here the tradition at its most characteristic opens a conversation rather than shutting one down. One interpretation - the most widely quoted, in the Jerusalem Talmud, Pesachim 10:1 - anchors the four cups to the four expressions of redemption in Exodus 6:6-7: "I will bring you out... I will deliver you... I will redeem you... I will take you." Four verbs of liberation, four cups to match. The language of rescue, poured into sequence. A fifth expression follows in Exodus 6:8 - "I will bring you into the land" - and that is Elijah's cup, the unfilled promise, the open cup sitting undrunk on every seder table for twenty-five centuries of exile and return.
The record
The linkage between the four cups and the four redemption-verbs of Exodus 6:6-7 is recorded in the Jerusalem Talmud, Pesachim 10:1 (a Palestinian compilation finalised around the late 4th century CE). A parallel but slightly different set of interpretations appears in the Babylonian Talmud, Pesachim 108a-b, where sages debate the position at the table (reclining to the left) and the minimum amount required to fulfil the obligation. The scholarly treatment by Baruch Bokser in The Origins of the Seder (University of California Press, 1984) remains the standard analysis of how the Mishnah transformed post-Temple Passover practice.
The four cups are also the frame. Kiddush - the first cup - sanctifies the night and separates it from the ordinary. The second cup follows the telling, the Maggid, the story of Egypt and the Exodus. The third cup is drunk after the meal, over Birkat ha-Mazon, the grace that acknowledges the gift of food. The fourth cup closes the Hallel, the psalms of praise. Between those four cups the entire seder moves: questions and answers, bitterness and sweetness, memory and song. The rabbis were not merely regulating wine consumption. They were installing four columns inside which an evening of transmission could stand upright.
What is quietly remarkable is that the Mishnah insists no one is excused. The very poor, the person who depends on charity - even that person drinks four cups. Passover is not a luxury of the comfortable. It is a story that belongs to everyone, or it belongs to no one. The four cups take their places on every table, and the night begins.
