Contradiction with Psalm 104:5
Contradicts by stating that the earth will not be moved forever, whereas Isaiah 51:6 speaks to the heaven and earth vanishing away.
Psalm 104:5: [Who] laid the foundations of the earth, [that] it should not be removed for ever. [Who...: Heb. He hath founded the earth upon her bases]
Contradiction with Ecclesiastes 1:4
Contradicts by asserting that the earth abides forever, in contrast to Isaiah 51:6's mention of the earth vanishing.
Ecclesiastes 1:4: [One] generation passeth away, and [another] generation cometh: but the earth abideth for ever.
Paradox #1
The verse implies that the heavens and the Earth will eventually vanish or wear out. Scientifically, while the Earth and stars will change over extremely long periods, the notion of them simply vanishing doesn't align with current scientific understanding. Stars, including our sun, go through life cycles that end in more gradual processes like supernovae or transformation into white dwarfs. Similarly, changes to Earth involve processes over billions of years, such as tectonic shifts or eventual absorption by the sun when it becomes a red giant. This concept conflicts with the direct notion of sudden disappearance.
Paradox #2
Isaiah 51:6 mentions the passing away of the heavens and the earth, but salvation being everlasting. Some may see a contradiction between the idea of a loving, everlasting God and the concept of the destruction of creation. It might seem inconsistent for a caring deity to allow such a large-scale end. However, others interpret this as a metaphor for transformation rather than literal destruction.