Contradiction with Deuteronomy 31:24
Joshua 24:26 mentions Joshua writing in the book of the law of God, while Deuteronomy 31:24 states Moses completed the writing of the law, suggesting a contradiction in authorship.
Deuteronomy 31:24: And it came to pass, when Moses had made an end of writing the words of this law in a book, until they were finished,
Contradiction with Exodus 34:27
Indicates that Moses wrote the words of the covenant, contradicting Joshua 24:26 where Joshua writes the words in the book of the law of God.
Exodus 34:27: And the LORD said unto Moses, Write thou these words: for after the tenor of these words I have made a covenant with thee and with Israel.
Contradiction with Jeremiah 31:33
This verse speaks of God's law being written on hearts rather than in books, contradicting the concept in Joshua 24:26 of writing in a physical book.
Jeremiah 31:33: But this [shall be] the covenant that I will make with the house of Israel; After those days, saith the LORD, I will put my law in their inward parts, and write it in their hearts; and will be their God, and they shall be my people.
Contradiction with Hebrews 8:10
Similar to Jeremiah 31:33, it mentions God's laws written in minds and hearts rather than on tablets or in books, contradicting the literal recording in Joshua 24:26.
Hebrews 8:10: For this [is] the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people: [put: Gr. give] [in: or, upon]