What does Genesis 48:22 mean?

Jacob, on his deathbed, has just given to Joseph a double portion of his inheritance by making Joseph's two oldest sons full heirs along with his brothers (Genesis 48:14–16). Now he adds one more thing to Joseph's inheritance. Jacob bestows a specific ridge or mountain slope in Canaan. This is described using the Hebrew term for "shoulder," which is shakem, is very similar to the name of the region Shechem, where Jacob's sons had made a vengeful conquest (Genesis 34:25–27). Of course, Jacob left soon after, rather than conquering that territory.

The area Jacob mentions was, it seems, taken from the Amorites. Prior references in Genesis did not include that detail, but the same area is later known as Sychar and is the site of a well apparently dug by Jacob (John 4:4–5). This is where Jacob's remains will be buried, after Israel is liberated from Egyptian slavery (Joshua 24:32).