Typically this is a Christian argument used against Islam - but I’m actually curious if this is seen as a valid argument from a secular point of view? (Even if it’s not the “best”)
Because essentially it’s “your holy book contradicts the holy book it claims to be endorsed by”, which personally I think I can see working on a secular level, even if you don’t actually believe in the Bible either.
spoiler
! Also, full disclosure: Yes, I am a Christian. !<
It’s pretty simple
None of their books have a shred of credibility.
That which is stated without evidence (can be dismissed without evidence
The very thought of their god existing falls apart when you consider the omnipotence paradox.
How would you explain the omnipotence paradox?
Can a god create a rock it cannot lift?
The very concept of omnipotence is a logical fallacy.
Given that the whole basis of the fairytale relies on their god being omnipotent, it kinda falls at the first hurdle