Contradiction with Exodus 33:20
This verse states that no man can see God's face and live, which contradicts Revelation 22:4 where it is mentioned that they shall see His face.
Exodus 33:20: And he said, Thou canst not see my face: for there shall no man see me, and live.
Contradiction with John 1:18
It declares that no one has ever seen God, whereas Revelation 22:4 suggests that His servants will indeed see His face.
John 1:18: No man hath seen God at any time; the only begotten Son, which is in the bosom of the Father, he hath declared [him].