The Readings for Saturday in the 13th week Per Tempus Annum (C1)
God used Jacob: he was the second born son rather than the preference of Patriarchs who want the oldest boy. Think about it, though. Isaac was the second born son as well. Think back... the oldest son of Noah caused a curse as did the oldest son of Adam. In fact, Adam was not the first created animal: he was created last and asked to rule over the animals. David was the youngest son of Jesse. Solomon was not his oldest son - in fact, he was the youngest son of the seventh wife if I count rightly. So even when you have a "patriarchal culture" God doesn't quite follow the rules.
Esau sold his birthright to his younger brother - a thing probably not normal in any culture that has something called a "birthright". Esau probably imagined that was a meaningless transaction. But, lo: God honors it even so. And Esau falls into a long line of firstborn sons who don't quite measure up.
How does this typologically fit Jesus, the Only Begotten Son of God and the firstborn of Mary?
Well, Jesus came from the wrong side of town...
Rome was the Center of the World. Culture was made there. Technology and money concentrated there. It was not only the seat of power: it was the center to which all things flowed. The produce of the world, the art, philosophy, and the economy of the world drained out in Rome. It was the Silicone Valley of its day.
Jesus wasn't born there.
If Rome is the urban center of the San Francisco Bay, Jesus was born to a poor family in a cowshed on the outskirts of Canon City, Colorado. His followers said he was Lord of the World. Even a couple of decades later, in the heart of the empire, there was only 150 or so Roman Christians, many of the homeless, slaves, rescued orphans and elderly... these were not the revolutionaries that would ever overthrow the known world.
But they did.
Picking up the lowly and casting down the mighty. That's how God works. The "Flyover States" are the most dangerous place on the map.