Trivia - Other Names for Pentecost

Pentecost
Question: Pentecost has been given all of the following listed names except which one? (see Exodus 23:16, Exodus 34:22, Numbers 28:26)

A) Feast of  Chosen
B) Feast of Harvest
C) Feast of Weeks
D) Day of the Firstfruits

Answer: A) Feast of Chosen