Contradiction with Romans 10:4
It suggests that Christ is the end of the law for righteousness, which could be seen as contradicting the reliance on the writings of Moses for belief.
Romans 10:4: For Christ [is] the end of the law for righteousness to every one that believeth.
Contradiction with Galatians 3:24
This verse mentions that the law was our guardian until Christ came, which can seem contradictory to the idea that belief in Moses directly leads to belief in Jesus.
Galatians 3:24: Wherefore the law was our schoolmaster [to bring us] unto Christ, that we might be justified by faith.