[RushingWater]

The concept pre-dated those two by a couple thousand years; Ps 51:5. Paul in Romans 5:12-14 discusses it as well.

Read Ps 51:5 in the KJV, NASB vs the NIV. They are saying different things, it appears the NIV is a biased translation in this verse. King David was repenting fully of his sin, why would he switch the blame to God in his confession? There is indication that David was conceived out of wedlock. He has 2 half sisters who were daughters of Nahash and not Jesse and he was not in the first presentation of Jesse sons when Samuel requested his sons appear.
Rom 5:12 states "because all sinned" implying individuals personally sinning themselves, not sin from birth.

[xone]

Rom 5:12 states "because all sinned" implying individuals personally sinning themselves, not sin from birth.

Yet babies die.

why would he switch the blame to God in his confession?

That is an interesting view. Lol.

David was conceived out of wedlock.

Do you dispute Jesse as his father?

he was not in the first presentation of Jesse sons

Because he was youngest, Jesse and Samuel were initially interested in the outward form.