'Holy Spirit' in the Bible

And I had not known him. But he who sent me to immerse in water, he said to me, Upon whomever thou will see the Spirit descending and remaining on him, this is he who immerses in Holy Spirit.

But he spoke this about the Spirit that those who believe in him were going to receive, for Holy Spirit was not yet, because Jesus was not yet glorified.

But the helper, the Holy Spirit that the Father will send in my name, he will teach you all things, and will remind you of all that I said to you.

And after saying this, he breathed on them, and says to them, Receive ye Holy Spirit.