Save Me, Jebus

This sign is hanging over a coworker's desk. He's a religious dude and doesn't hide it. Normally I ignore the Jesus crap on his board but this one has me baffled. What does "No Jesus, No Christmas" mean? Is that like, "No Shoes, No Service."? Is it questioning whether or not there was a Jesus? Is it telling me i'm not allowed to celebrate Christmas if i'm not down with Jesus? If I remember correctly, Jesus wasn't even born on Christmas... I don't get it. All the time i've spent thinking about it could have been better spent building office supply battlebots or reading the Onion. Instead i sit and ponder the existence of Jesus and whether or not i'm allowed to laugh when Cousin Eddie follows up his Christmas greeting by announcing that his shitter is, in fact, full.

That sign is ruining Christmas.