Joseph is a fruitful bough, even a fruitful bough by a well; whose branches run over the wall:
All Commentaries on Genesis 49:22 Go To Genesis 49
Ephrem The Syrian
AD 373
Just as Jacob depended on Joseph instead of Reuben the firstborn, so also instead of Adam, the firstborn and rebellious one, the world had one Son of old age, in the latter days of the world, so that the whole world might stand and lean on him as if on a pillar. “Rise up, O spring, O building supported” by brothers and sons. Through the power of our Lord the world is supported on the prophets and on the apostles. Joseph became a wall of plenty to his brothers in the time of famine, and our Lord became the wall of knowledge to the world in the time of error.