Contradiction with Genesis 46:10
Lists Simeon's sons and mentions Jemuel, Jamin, Ohad, Jachin, Zohar and Shaul; it contradicts Exodus 6:17, which does not list all these names as descendants of Simeon.
Genesis 46:10: And the sons of Simeon; Jemuel, and Jamin, and Ohad, and Jachin, and Zohar, and Shaul the son of a Canaanitish woman. [Jemuel: or, Nemuel] [Jachin: or, Jarib] [Zohar: or, Zerah]
Contradiction with Numbers 26:12
Enumerates the family leaders of Simeon's descendants differently, providing an alternate genealogy which conflicts with the listing of the sons of Gershon in Exodus 6:17.
Numbers 26:12: The sons of Simeon after their families: of Nemuel, the family of the Nemuelites: of Jamin, the family of the Jaminites: of Jachin, the family of the Jachinites: [Nemuel: also called, Jemuel] [Jachin: also called, Jarib]
Contradiction with 1 Chronicles 4:24
Lists the sons of Simeon as Nemuel, Jamin, Jarib, Zerah, and Shaul, presenting a different set of names from those listed in Exodus 6:17 for Levi's descendants.
1 Chronicles 4:24: The sons of Simeon [were], Nemuel, and Jamin, Jarib, Zerah, [and] Shaul: [Nemuel: or, Jemuel] [Jarib, Zerah: or, Jachin Zohar]