Contradiction with 2 Corinthians 3:13
It mentions that unlike Moses, who put a veil over his face, Christians don't have to hide the glory and can be open because of the freedom in Christ.
2 Corinthians 3:13: And not as Moses, [which] put a vail over his face, that the children of Israel could not stedfastly look to the end of that which is abolished:
Contradiction with 1 Corinthians 15:52
Talks about the sudden change and revelation at the end time, whereas Exodus 34:34 signifies a need for mediation and covering which is gradual and continuous with the law.
1 Corinthians 15:52: In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.