Contradiction with Genesis 4:1
Genesis 4:2 states that Abel was a keeper of sheep, but the preceding verse, Genesis 4:1, mentions Cain as the firstborn without saying that Abel was born later, implying that Cain's occupation, a tiller of the ground, may have been more significant.
Genesis 4:1: And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from the LORD. [Cain: that is, Gotten, or, Acquired]
Contradiction with Genesis 9:3
Genesis 4:2 shows Abel as a keeper of sheep and indicates early domestication, while Genesis 9:3 suggests that livestock management for food was established post-flood.
Genesis 9:3: Every moving thing that liveth shall be meat for you; even as the green herb have I given you all things.
Paradox #1
The historical inconsistency in this context might be related to the account of Cain and Abel's professions, as it presents an agricultural society with farming and herding at a time when, according to some interpretations of archaeological evidence, human societies were primarily hunter-gatherers. This could create a perceived conflict with historical timelines regarding the development of agriculture and animal domestication.