'Holy Spirit' in the Bible

I had no knowledge who he was, but he who sent me to give baptism with water said to me, The one on whom you see the Spirit coming down and resting, it is he who gives baptism with the Holy Spirit.

But the Helper, the Holy Spirit, whom the Father will send in my name, will be your teacher in all things and will put you in mind of everything I have said to you.

And when he had said this, breathing on them, he said to them, Let the Holy Spirit come on you: