What is Pentecost?
(from a Greek word signifying fiftieth) is the name by which the N.T. denotes the second great festival of the Jews, called by them "the feast of weeks" or "the day of first-fruits." It was celebrated on the fiftieth day (hence the name) after the Passover, reckoning from the second day of the Passover (the 16th of Nisan), Lev 23:11, 2 Sam 20:15, to the morrow after the end of the seventh week. Lev 23:15-16; Deut 16:9. It was originally a simple thanksgiving for the harvest, which in Palestine fell in the weeks between the Passover and the Pentecost. The festival was kept only for one day, and the principal rite consisted in the offering of two loaves made of the finest flour of the last crop's wheat. Later on, however, after the destruction of Jerusalem and the dispersion of the Jewish nation, the feast assumed an historical character. It was made out from Ex 19 that the giving of the Law on Mount Sinai took place on the fiftieth day after the deliverance from Egypt, and in course of time, and among Jews living in other climes with another harvest-season, this became the principal signification of the festival. In the Christian Church, Pentecost is celebrated seven weeks after Easter, in commemoration of the outpouring of the Holy Spirit on the disciples, as the birthday of the Christian Church. Acts 2:1-14.
Bibliography Information Schaff, Philip, Dr. "Biblical Definition for 'pentecost' in Schaffs Bible Dictionary". bible-history.com - Schaff's