Contradiction with Numbers 11:14
In Exodus 18:14, Moses is advised to handle the burden of leadership with help, whereas in Numbers 11:14, Moses laments that he cannot carry all the people alone, showing a contradiction in the handling of leadership burdens.
Numbers 11:14: I am not able to bear all this people alone, because [it is] too heavy for me.
Contradiction with Deuteronomy 1:12
In Exodus 18:14, Moses is being questioned by Jethro on why he alone judges the people, implying need for help, while in Deuteronomy 1:12, Moses himself expresses difficulty in bearing the people's burdens alone, showing he recognized the need for assistance.
Deuteronomy 1:12: How can I myself alone bear your cumbrance, and your burden, and your strife?
Contradiction with Exodus 24:3
Exodus 18:14 involves Jethro questioning Moses' sole authority, yet in Exodus 24:3, Moses alone communicates God's laws and judgments to the people, acting as the singular intermediary.
Exodus 24:3: And Moses came and told the people all the words of the LORD, and all the judgments: and all the people answered with one voice, and said, All the words which the LORD hath said will we do.
Contradiction with 1 Samuel 8:20
In Exodus 18:14, Moses is advised to delegate leadership, yet in 1 Samuel 8:20, the Israelites demand a king to judge them, rejecting the system of delegated judges established in Moses’ time.
1 Samuel 8:20: That we also may be like all the nations; and that our king may judge us, and go out before us, and fight our battles.
Contradiction with Isaiah 2:4
Exodus 18:14 deals with many disputes being judged, but Isaiah 2:4 prophesizes a time when nations will not learn war anymore and disputes are settled peacefully by God, contrasting the need for constant human judges.
Isaiah 2:4: And he shall judge among the nations, and shall rebuke many people: and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up sword against nation, neither shall they learn war any more. [pruninghooks: or, scythes]