is the study of last things, hence the destiny of the world. In Greco-Roman culture, this theme was a favorite subject, and in apostolic times, had to act several times to correct the erroneous eschatological views of the Corinthians. The conversion to of many pagans and Jews brought with it an intrusion of eschatological into Christianity.

These books were always ascribed to one of the Apostles, such as the of , the of , the of , the of Stephen, and the of Bartholomew.