Contradiction with Genesis 6:3
This verse states that man's days shall be 120 years, contradicting the long lifespans like Methuselah's 969 years in Genesis 5:25.
Genesis 6:3: And the LORD said, My spirit shall not always strive with man, for that he also [is] flesh: yet his days shall be an hundred and twenty years.
Contradiction with Psalm 90:10
Describes an average human lifespan as 70 to 80 years, contrasting Methuselah’s much longer lifespan in Genesis 5:25.
Psalm 90:10: The days of our years [are] threescore years and ten; and if by reason of strength [they be] fourscore years, yet [is] their strength labour and sorrow; for it is soon cut off, and we fly away. [The days...: Heb. As for the days of our years, in them are seventy years]
Paradox #1
The Bible does not provide much scientific information in Genesis 5:25, so any perceived contradiction or inconsistency would likely relate to broader themes in Genesis, such as the long lifespans of early humans. From a scientific point of view, people do not live for hundreds of years, as suggested in some of these genealogical accounts, due to biological limits on human aging and lifespan. This can be seen as contradictory with our current understanding of human biology and history.
Paradox #2
The possible contradiction in Genesis 5:25 involves Methuselah's age and the timeline of the flood. According to the ages given in Genesis 5, Methuselah would have died in the same year as the flood if you add up the years carefully. This could be seen as a timeline inconsistency, as it's debated whether he died just before the flood or was somehow saved from it.