'Helper' in the Bible

I will ask the Father to give you another Helper, to be with you always.

But the Helper, the Holy Spirit, whom the Father will send in my name, will teach you all things and remind you of everything that I have told you.

"When the Helper comes, whom I will send to you from the Father the Spirit of Truth, who comes from the Father he will testify on my behalf.

However, I'm telling you the truth. It's for your advantage that I'm going away, because if I don't go away, the Helper won't come to you. But if I go, I will send him to you.