"... Although much scholarship has been written about the development and transmission of 2 Kings 18–20 and Isaiah 36–39, most studies fail to seriously consider scribal error as a major source of textual divergence. Instead, these studies usually argue that the differences were the result of purposeful revision or expansion by later scribes. While some of the differences in Isaiah 38–39 can certainly be attributed to the insertion of Hezekiah’s psalm, there are still some significant differences between the accounts in Isaiah and 2 Kings that cannot be attributed to redactional activity with a high degree of confidence. After excluding the differences that are a direct result of the insertion of the Psalm of Hezekiah, I count 45 major disagreements between these two accounts that are responsible for a 140-word difference. Of these 45 variants, 11 are possible cases of haplography or dittography, but 34 cannot be easily explained as having resulted from scribal errors. These latter 34, however, are almost all one- or two-word variants and are only responsible for 37% of the difference between the parallel accounts. The bulk of the difference (63%) comes from the 11 variants that could have been caused by scribal errors ..."