Genesis 46:8
“And these are the names of the children of Israel, which came into Egypt, Jacob and his sons: Reuben, Jacob’s firstborn.”
And they took their cattle, and their goods, which they had gotten in the land of Canaan, and came into Egypt, Jacob, and all his seed with him:
His sons, and his sons’ sons with him, his daughters, and his sons’ daughters, and all his seed brought he with him into Egypt.
And these are the names of the children of Israel, which came into Egypt, Jacob and his sons: Reuben, Jacob’s firstborn.
And the sons of Reuben; Hanoch, and Phallu, and Hezron, and Carmi.
And the sons of Simeon; Jemuel, and Jamin, and Ohad, and Jachin, and Zohar, and Shaul the son of a Canaanitish woman.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Now these are the names of the children of Israel, which came into Egypt; every man and his household came with Jacob.”
“The sons of Leah; Reuben, Jacob’s firstborn, and Simeon, and Levi, and Judah, and Issachar, and Zebulun:”
“Take the sum of the people, from twenty years old and upward; as the Lord commanded Moses and the children of Israel, which went forth out of the land of Egypt.”
“On the south side shall be the standard of the camp of Reuben according to their armies: and the captain of the children of Reuben shall be Elizur the son of Shedeur.”
“These be the heads of their fathers’ houses: The sons of Reuben the firstborn of Israel; Hanoch, and Pallu, Hezron, and Carmi: these be the families of Reuben.”