'Spirit of God' in the Bible

For who among men knows the things of a man except the spirit of man within him? So also no one knows the things of God except the Spirit of God.

But the natural man does not receive the things of the Spirit of God, for they are foolishness to him; neither can he know them, because they are spiritually discerned.

Do you not know that you are a temple of God, and that the Spirit of God dwells in you?

But she is happier if she so remains, according to my judgment. And I also think that I have the Spirit of God.

Therefore I make known to you that no one speaking by the Spirit of God says Jesus is a curse, and that no one can say that Jesus is Lord, but by the Holy Spirit.