The word Pentecost comes from the Greek pentēkostós—“fifitieth”, referring to the fifty days (seven weeks) between the start of the grain harvest and the “harvest festival” at the end of grain harvest period (both barley and wheat) observed by Jews (Leviticus 23:15:21). Over time the festival at the start of the grain harvest had combined with the Passover, so that Pentecost always…