Do you know what today is?  It is the day of Pentecost.  The anniversary of the beginning of the church and the day the Holy Spirit came upon the disciples waiting for commissioning in Jerusalem.

After Jesus rose on the third day after his crucifiction, he appeared to his disciples and others, explaining many of the Scriptures for the next 37 days.  Forty days after Passover, he ascended into heaven.  Before he did, he told them to preach the Gospel to all nations, but before they went, they were to wait upon the Holy Spirit.

So they went back to Jerusalem and waited.  Waiting, watching, and praying.

Ten days later, on Shavout,  the Holy Spirit fell upon them, baptizing them in spirit and power.