BY CHARLES C. RYRIE, TH.D., PH.D. By anyone’s standards Pentecost was a significant day. It is the purpose of this article to treat the significant aspects of the day in relation to certain major areas of theological studies. Typology has suffered a great deal at the hands of both its friends and its enemies, since for many the study of types is still an uncertain science. Some, it is true, have found types in everything, while others