Modern day Biblical research has found that the first books of the Old Testament was most probably written by a woman. She is known by the letter J. This has been determined by comparing the oldest known scriptures to those of known "schools" of scribes in the Jewish society. J wrote in the same manner as a school of only women.

The oldest books of the New Testament were written in the first decades after the crucifiction and resurection of Christ. Paul almost lived in the days of Christ. There are also letters in the New Testament written by people who knew Christ, such as Peter. The Gospels are probably a bit younger, but most scholars say they were written no later than a hundred years after the life of Jesus Christ.