Contradiction with Matthew 19:24
It implies the difficulty for the rich to enter the kingdom of God, contrasting with the opulence of Revelation 21:21's description of the heavenly city.
Matthew 19:24: And again I say unto you, It is easier for a camel to go through the eye of a needle, than for a rich man to enter into the kingdom of God.
Contradiction with 1 Timothy 6:9-10
Warns against the pursuit of wealth, which contrasts with the depiction of wealth in Revelation 21:21.
1 Timothy 6:9-10: But they that will be rich fall into temptation and a snare, and [into] many foolish and hurtful lusts, which drown men in destruction and perdition.
Contradiction with Matthew 6:19-20
Advises laying up treasures in heaven, where materials like gold have a spiritual, not literal, value.
Matthew 6:19-20: Lay not up for yourselves treasures upon earth, where moth and rust doth corrupt, and where thieves break through and steal:
Contradiction with James 5:1-3
Condemns corrupt riches, conflicting with the positive depiction of gold in Revelation 21:21.
James 5:1-3: Go to now, [ye] rich men, weep and howl for your miseries that shall come upon [you].
Paradox #1
The contradiction or inconsistency might arise from the description of opulent materials not aligning with the historical and geological understanding of ancient times. The portrayal of such abundant wealth and materials could be seen as inconsistent with what was realistically available or used in ancient settings. However, this is often viewed symbolically rather than literally, which can resolve the conflict.
Paradox #2
The description of the city having streets of pure gold and gates made of single pearls is seen by some as scientifically inconsistent, as gold and pearls in such massive quantities and structural forms are not known in nature. The depiction may conflict with our understanding of materials and their physical properties.