Some say apostles got Holy Spirit on the day of Pentecost. I also think this is true in some way, but in gospels there is record that Jesus 'gave them authority over devils and diseases and sent them to preach gospel, to heal the sick, cleanse the lepers, raise the dead. etc.'. If they got it at Pentecost, with what power then did the twelve these wonders if not with Holy Spirit? Again Jesus in John 15 talks about Spirit that he will send it, does this mean they yet had no Spirit upon them?
Could it mean that apostles had just some spiritual gifts like healing before Pentecost, but after it they received gift of prophesy and gift of tongues? Or is this authority that I mentioned just about Jesus' own power he gave them and isn't about Spirit in themselves like when he said to Peter to cast net into water and pulled out much fishes?