The present revised edition of Professor Thiessen's Lecture in Systematic Theology remains completely faithful to the substance and character of the original. Reflected here, however, are the advances that have occurred during recent years: older references frequently have given may to citations from more current biblical and theological works, and a section on personal eschatology has been incorporated for the first time. Extensive revisions mark the sections on inspiration, election, demons, and pretibulationalism. Also included in the revised edition are a completely new chapter on the Holy Spirit and a full bibliography to aid in further study.