While we talk about Pentecost as a Christian holiday, it was first a Jewish feast. It was one of three times a year God’s people were to appear before  Him at the Temple. Each feast was a ceremony deeply rooted in the past, but also gave hope for future. God chose those feast days for the great redemptive acts of Jesus, the Jewish Messiah. On Passover, Jesus died as our Passover lamb. But on Pentecost, God revealed his presence in a whole new way.
Scripture: Acts 2:1-21, 37-47