Contradiction with Genesis 46:27
This verse contradicts Numbers 2:30 by stating the number of all souls of the house of Jacob which came into Egypt, differing from the numbers given in the formation of tribes.
Genesis 46:27: And the sons of Joseph, which were born him in Egypt, [were] two souls: all the souls of the house of Jacob, which came into Egypt, [were] threescore and ten.
Contradiction with Exodus 1:5
This verse indicates a different number of Jacob's descendants who came to Egypt compared to the tribal arrangements in Numbers 2:30.
Exodus 1:5: And all the souls that came out of the loins of Jacob were seventy souls: for Joseph was in Egypt [already]. [loins: Heb. thigh]
Contradiction with Deuteronomy 10:22
This verse provides another contrasting account of the number of Jacob's descendants, differing from the tribal census in Numbers 2:30.
Deuteronomy 10:22: Thy fathers went down into Egypt with threescore and ten persons; and now the LORD thy God hath made thee as the stars of heaven for multitude.