Why Count the Omer, Part 1: The First 40 Days
Counting the Omer – most are familiar with the culmination of the count, which is Pentecost, also called the Festival of Weeks. “Weeks” is taken from the Hebrew word “shavuot” and refers to the seven weeks that precede Pentecost. Leviticus 23:15 tells us to count the weeks between the Feast of First Fruits and Pentecost:
“From the day after the Sabbath, the day you brought the sheaf of the wave offering, count off seven full weeks.”