Faith is weird after the apocalypse. It's tangled and complicated, and even thinking about it sometimes makes Five miss his family. To him faith is family, and family is faith: the only Jewish people he knew were his siblings and his mom. They'd rarely been to shul.
Still, something niggles at him every seven days when he carves a notch into his calendar stick. After a couple months he decides that even if he will struggle with his faith for the rest of his life, he'd still like to observe what he can. So he and Delores look for signs of Jewish life under the rubble. They cobble together books of matches, candles, candlesticks, a kippah. It seems that most bottles of wine shattered when buildings collapsed, and of course all the bread in the world has long gone moldy, but it's a good start.
So, every Friday morning, Five sets up camp for him and Delores. He sweeps up their campsite, makes their food in advance, makes it look as good as possible. He poses her one hand in front of her face as best he can, though she can't bend her elbow very far. Together they say the prayers as he lights the candles. He closes his eyes and imagines his family around him: Klaus bragging about how he helped Grace make the challah, Luther pouring the grape juice, Ben sneaking peeks at his latest novel under the table.
Sometimes he works out his feelings by having discussions with Delores. It gets pretty heated on his side, though Delores tends to keep her cool. Even if he gets worked up on something on which they disagree, their discussions always make Five feel better when he gets down about the apocalypse. Delores is a bit of an optimist.
Once he and Delores get back into the swing of things, Five finds himself a guitar. It's only a little bit broken, nothing he can't fix with some salvaged super glue. After that, he spends a couple weeks teaching himself how to play. He remembers a few chords from when Klaus and Ben tried to learn. They'd cluster into Allison's room together, the two boys with guitars, Five with percussion, Allison with her voice and a hairbrush microphone. Sometimes Vanya joined in with her violin, though whenever she did Klaus would stop playing since he sounded "terrible next to that!"
Now Five can play L'cha Dodi, hesitantly, starting the phrase over whenever he makes a mistake. He only remembers about half the verses, but he can sing the chorus with gusto. Delores joins in with her lovely soprano voice, and they weave a beautiful tapestry with which to welcome the Sabbath Bride.