Eschatology Is One of the Dominant Themes of the Theology of our Time. It is mainly since the work of biblical scholar Johannes Weiss, under the title Die Predigt Jesu vom Reiche Gottes (particularly in its second edition of 1900), that eschatology has begun to occupy the center of Christian theology. One may even say that the history of eschatology is divided into a pre-Weiss and a post-Weiss period. It is no longer possible to return to the period before Weiss, neither in biblical nor in systematic theology.