The Feast of Weeks was later called the Feast of Pentecost (see Acts 2:1; also Leviticus 23:15–22). It marked the end of the barley harvest and the start of the wheat harvest in early summer (May or June). The Greek name Pentecost means “fiftieth.” It refers to the fiftieth day after Passover (see Acts 20:16; 1 Corinthians 16:8).