The Age of Reason by Thomas Paine

These books, beginning with Genesis and ending with Revelations, (which, by the by, is a book of riddles that requires a revelation to explain it) are, we are told, the word of God. It is, therefore, proper for us to know who told us so, that we may know what credit to give to the report. The answer to this question is, that nobody can tell, except that we tell one another so. The case, however, historically appears to be as follows:

When the church mythologists established their system, they collected all the writings they could find, and managed them as they pleased. It is a matter altogether of uncertainty to us whether such of the writings as now appear under the name of the Old and the New Testament, are in the same state in which those collectors say they found them; or whether they added, altered, abridged, or dressed them up.