Luke alone records TWO cups (22:17, 22:20), and the detail is at home in the feast: the Passover meal was ordered around four cups of wine, a structure already fixed in the Mishnah, the first written code of Jewish oral law (Pesachim 10:1). Passover (Pesach) is the spring feast remembering the exodus; its meal, the seder (“order”), moved through blessing, story, and psalm with a cup at each station. Jesus takes the feast's own furniture, and at the cup after supper says the words that made it new: “this cup... is the new covenant in my blood.”

The seder as Jewish families keep it today descends from the same order, reshaped after the Temple fell in AD 70; the lamb on the table then is matzah and remembrance now.