'Spirit' in the Bible

I indeed have baptised you with water, but he shall baptise you with the Holy Spirit.

And straightway going up from the water, he saw the heavens parting asunder, and the Spirit, as a dove, descending upon him.

And immediately the Spirit drives him out into the wilderness.

And there was in their synagogue a man possessed by an unclean spirit, and he cried out

And the unclean spirit, having torn him, and uttered a cry with a loud voice, came out of him.

And straightway Jesus, knowing in his spirit that they are reasoning thus within themselves, said to them, Why reason ye these things in your hearts?

but whosoever shall speak injuriously against the Holy Spirit, to eternity has no forgiveness; but lies under the guilt of an everlasting sin;

because they said, he has an unclean spirit.

And immediately on his going out of the ship there met him out of the tombs a man possessed by an unclean spirit,

For he said to him, Come forth, unclean spirit, out of the man.

But immediately a woman, whose little daughter had an unclean spirit, having heard of him, came and fell at his feet

And groaning in his spirit, he says, Why does this generation seek a sign? Verily I say unto you, A sign shall in no wise be given to this generation.

And one out of the crowd answered him, Teacher, I brought to thee my son, who has a dumb spirit;

And they brought him to him. And seeing him the spirit immediately tore him; and falling upon the earth he rolled foaming.

But Jesus, seeing that the crowd was running up together, rebuked the unclean spirit, saying to him, Thou dumb and deaf spirit, I command thee, come out of him, and enter no more into him.

for David himself said speaking in the Holy Spirit, The Lord said to my Lord, Sit on my right hand until I put thine enemies as footstool of thy feet.

But when they shall lead you away to deliver you up, be not careful beforehand as to what ye shall say, nor prepare your discourse: but whatsoever shall be given you in that hour, that speak; for ye are not the speakers, but the Holy Spirit.

And he takes with him Peter and James and John, and he began to be amazed and oppressed in spirit.

Watch and pray, that ye enter not into temptation. The spirit indeed is willing, but the flesh weak.