'Ghost' in the Bible

Which things also we speak, not in the words which man's wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual.

What? know ye not that your body is the temple of the Holy Ghost which is in you, which ye have of God, and ye are not your own?

Wherefore I give you to understand, that no man speaking by the Spirit of God calleth Jesus accursed: and that no man can say that Jesus is the Lord, but by the Holy Ghost.