A decree went out
In those days a decree went out from President Trump - no wait, it was Emperor Augustus. Well, there's always someone who thinks they're on top... Anyway, a decree went out that all the world should be registered. Because the empire needs everyone to have papers. Without papers, you can't be properly tracked, can't be properly taxed, can't be properly subject to those trying to run the show. This was the first registration and was taken while Bashar al-Assad was governor of Syria. (Or was it Quirinius? So many governors...) All went to their own towns to be registered. Maybe that's where the original papers were. Or maybe it's because once you're a Judean, always a Judean, once a Mexican, always a Mexican. Once a Kurd, an Eritrean, a Cambodian, a Yemeni... you get the idea. The Authorities said you'd better get the idea. Joseph also went from the town of Nazareth in Galilee to Judea, to the city of David called Bethlehem, because he was descende...