'Holy Spirit' in the Bible

I indeed have baptized you in water, but He shall baptize you with the Holy Spirit.

But he who blasphemes against the Holy Spirit never shall have forgiveness, but is liable to eternal condemnation.

For David himself said by the Holy Spirit: "The LORD said to my Lord, Sit at My right hand until I place Your enemies as Your footstool."

But whenever they lead you away and deliver you up, take no thought beforehand what you should speak or think. But speak whatever shall be given to you in that hour. For it is not you who speaks, but the Holy Spirit.