What does Genesis 50:12 mean?

There went up with him both chariots and horsemen. It was a very great company.

They came to the threshing floor of Atad, which is beyond the Jordan, and there they lamented with a very great and severe lamentation. He mourned for his father seven days.

When the inhabitants of the land, the Canaanites, saw the mourning in the floor of Atad, they said, “This is a grievous mourning by the Egyptians.” Therefore its name was called Abel Mizraim, which is beyond the Jordan.

for his sons carried him into the land of Canaan, and buried him in the cave of the field of Machpelah, which Abraham bought with the field, as a possession for a burial site, from Ephron the Hittite, near Mamre.

Joseph returned into Egypt—he, and his brothers, and all that went up with him to bury his father, after he had buried his father.

When Joseph’s brothers saw that their father was dead, they said, “It may be that Joseph will hate us, and will fully pay us back for all the evil which we did to him.”