A consistent application of the most widely accepted principles and practices of New Testament textual criticism has resulted in stark declarations that the original autographs contained factual errors. The textual evidence for the problem passages of Matthew 1:7,10 and Luke 23:45 are carefully examined in this light. These commonly accepted principles are reexamined in light of the inerrancy debate in order to restructure the principles to improve their usefulness in the more general areas of the textual criticism of the NT and yet preserve the integrity of the NT autographs.