At one point David buys some land to build an altar. The owner offers to give the land up for nothing, but David insists on paying. Here is 2 Samuel 24:24:
The story is also recounted in Chronicles. This is 1 Chronicles 21:24-25:
The overall story in the surrounding verses is nearly identical, so these are definitely the same incident, despite the slight difference in names. (Which sound the same if you say them quickly enough...) So, did David pay 50 shekels of silver, or 600 shekels of gold? (A shekel is about 11 grams.)
The ESV Study Bible notes that in the first case, David pays 50 shekels of silver for the threshing floor and the oxen, while in the second case he pays 600 shekels of gold for "the site". It's possible that there were two separate transactions, and thus both accounts are correct.
However, the Oxford Bible Commentary says:
This reminder that the Chronicler was relying on possibly dubious texts does not sit well with inerrancy.
Thanks to Errancy.com for drawing my attention to this one.
Updated: 2009-08-24