The Jewish holiday of Shavuot begins this evening at sundown and lasts until sundown tomorrow. The Bible calls this day the Feast of Harvest (Exodus 23), the Feast of Weeks (Exodus 34) and the Feast of Firstfruits (Leviticus 23) The New Testament uses the Greek term Pentecost.
It was on this day that the first ‘harvest’ of the Gospel came in. Acts 2 describes how the Apostles’ teaching in the Temple area resulted in 3,000 baptisms.
Tomorrow marks an important anniversary day for Christians, though few of us tend to realize it each year. Shavuot/Pentecost is not the most famous day on our calendars, but it’s a biggie.