Contradiction with Exodus 18:18
This verse contradicts Deuteronomy 1:9 as it suggests that Moses already received Jethro's advice on appointing leaders to help him bear the burden before the events in Deuteronomy.
Exodus 18:18: Thou wilt surely wear away, both thou, and this people that [is] with thee: for this thing [is] too heavy for thee; thou art not able to perform it thyself alone. [Thou wilt...: Heb. Fading thou wilt fade]
Contradiction with Numbers 11:14
This verse highlights Moses' struggle and desire for help before the suggestion in Deuteronomy 1:9, indicating prior acknowledgment of the issue.
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
This verse immediately after Deuteronomy 1:9 echoes the sentiment of being overburdened, which can be seen as a repetition, not necessarily a contradiction but underscores the ongoing struggle despite the previous claim.
Deuteronomy 1:12: How can I myself alone bear your cumbrance, and your burden, and your strife?