The second of the three major festivals that all Jewish males were required to celebrate in Jerusalem. Pentecost, meaning “Fiftieth (Day),” is the name used in the Christian Greek Scriptures for what is called the Festival of Harvest or Festival of Weeks in the Hebrew Scriptures. It was celebrated on the 50th day counted from Nisan 16.​—Ex 23:16; 34:22; Ac 2:1.