Contradiction with Genesis 15:18
Explains a different boundary of the land promised, compared to Joshua 1:4.
Genesis 15:18: In the same day the LORD made a covenant with Abram, saying, Unto thy seed have I given this land, from the river of Egypt unto the great river, the river Euphrates:
Contradiction with Numbers 34:2-12
Provides a different description of the borders, contradicting Joshua 1:4.
Numbers 34:2-12: Command the children of Israel, and say unto them, When ye come into the land of Canaan; (this [is] the land that shall fall unto you for an inheritance, [even] the land of Canaan with the coasts thereof:)
Contradiction with Ezekiel 47:13-20
Offers a differing boundary description which is not consistent with Joshua 1:4.
Ezekiel 47:13-20: Thus saith the Lord GOD; This [shall be] the border, whereby ye shall inherit the land according to the twelve tribes of Israel: Joseph [shall have two] portions.
Paradox #1
The contradiction or inconsistency related to this verse is about the described territory, which is said to stretch from the desert to Lebanon, from the Euphrates River to the Mediterranean Sea. Historically, there is limited evidence that the Israelites controlled such a large area at any one time. This has led to debates among scholars about the historical accuracy and the interpretation of the text.