Contradiction with Numbers 1:20
While Numbers 26:28 talks about the descendants of Joseph, Numbers 1:20 focuses on the first census, specifically counting the tribe of Reuben, which is unrelated to Joseph's descendants.
Numbers 1:20: And the children of Reuben, Israel's eldest son, by their generations, after their families, by the house of their fathers, according to the number of the names, by their polls, every male from twenty years old and upward, all that were able to go forth to war;
Contradiction with Genesis 48:5
This verse mentions Jacob adopting Ephraim and Manasseh as his own, which contrasts with Numbers 26:28 focusing on them as tribal leaders under Joseph rather than direct sons of Jacob.
Genesis 48:5: And now thy two sons, Ephraim and Manasseh, which were born unto thee in the land of Egypt before I came unto thee into Egypt, [are] mine; as Reuben and Simeon, they shall be mine.
Contradiction with Genesis 41:50-52
These verses describe Joseph naming his sons, Ephraim and Manasseh, in Egypt, which sets a context different from Numbers 26:28, where these names represent tribal subdivisions.
Genesis 41:50-52: And unto Joseph were born two sons before the years of famine came, which Asenath the daughter of Potipherah priest of On bare unto him. [priest: or, prince]
Contradiction with Joshua 14:4
This verse states that the children of Joseph were divided into two tribes, Manasseh and Ephraim, contesting the notion in Numbers 26:28 of them being distinct subdivisions without separate inheritance.
Joshua 14:4: For the children of Joseph were two tribes, Manasseh and Ephraim: therefore they gave no part unto the Levites in the land, save cities to dwell [in], with their suburbs for their cattle and for their substance.