D. A. Carson Truthful Quotations

The truth of the matter is that inerrancy is simply a way of saying that there are no errors that call into question the truthfulness of Scripture wherever Scripture is making truth claims.

The important thing, Jesus is saying (in Matthew 5:33-37), is to tell the truth and keep one's pledges without insisting that a certain form of words must be used if it is to be binding. No oath is necessary for the truthful person... Their word is so reliable that nothing more than a statement is needed from them.