In our postmodern age, it’s fascinating to note that Jews still widely observe several biblical-era practices. Two among them stand out: brit milah (ritual circumcision) and Pesach (Passover). It’s also worth mentioning that Elijah the prophet plays major roles during both. Elijah is the honored guest at every circumcision, with a special chair — the Kisei Shel Eliyahu — reserved for him. He is also the honored guest at every Pesach seder, with the fifth cup of wine — the Kos Shel Eliyahu — poured especially for him, and he is treated to a special welcome when we open the door for him.