Before He ascended into Heaven, the Lord Jesus told His followers to wait in Jerusalem for the Holy Spirit who was about to come. The Spirit was already “with” them, Jesus said, but He would soon be “in” them, and “in” them “forever”! The coming of the Holy Spirit would manifest itself in two profound ways in the lives of these disciples. First, they would have “power”. Second, they would be Jesus’ “witnesses” (John 14:16-17, 16:7; Acts 1:4, 8). The idea is that the Spirit’s arrival would provide Jesus’ followers with everything......