The Haggadah (הַגָּדָה) is a Jewish text that sets forth the order of the Passover ritual meal, the Seder.
“There’s a reason the haggadah feels goyish: Formally speaking, it’s Greek. It’s a Judaicized version of a Greek genre called ‘symposium literature’. Plato loved the form. So did Xenophon. The symposium enshrined the most appealing traits of the Hellenic personality: conviviality, Epicureanism, a love of good conversation.”
–”Platonic Form,” Judith Shulevitz, Tablet Magazine