'Ghost' in the Bible

And I knew him not: but he that sent me to baptize with water, the same said unto me, Upon whom thou shalt see the Spirit descending, and remaining on him, the same is he which baptizeth with the Holy Ghost.

(But this spake he of the Spirit, which they that believe on him should receive: for the Holy Ghost was not yet given; because that Jesus was not yet glorified.)

But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.

When Jesus therefore had received the vinegar, he said, It is finished: and he bowed his head, and gave up the ghost.

And when he had said this, he breathed on them, and saith unto them, Receive ye the Holy Ghost: