Even after all the disciples had seen and heard, they were still expecting Jesus to restore the kingdom to Israel.

Instead, He announced that they were going to receive power when the Holy Spirit came upon them. This is the age of the Spirit, the church was about to be born. No longer would the Spirit be limited to individuals for God's purposes, but come on all who believed and were saved, bringing power to witness to the world. We too, live in this new age of the spirit, which means we too can access the power of God and we can witness to the world.