What changed in the few weeks between Jesus' followers running and hiding from fear for their lives to surging out into the streets with a message for thousands to hear? They had been equipped by Jesus. They had been witnesses of Jesus. They had been commissioned by Jesus. But the day had finally come which gave power to all of that. The day had come which made all of those other days all the more real. On the day of Pentecost, the Spirit of God was breathed into these disciples. As the breath of God once again filled humanity, they were also filled with the hope that this was just the beginning.