'Spirit of God' in the Bible

For what man knoweth the things of a man, save the spirit of man which is in him? even so the things of God knoweth no man, but the Spirit of God.

But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.

Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you?

But she is happier if she so abide, after my judgment: and I think also that I have the Spirit of God.

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.