The word, "spirit," appears in the Tanakh 249 times and it does not refer to a separate part of the "Trinity Godhead" as in Christianity.
When the Bible says "God is One" (Deut. 6:4) that means He is indivisible into parts; either physical or spiritual. Bible language is one humans can understand but it is not necessarily literal. Humans are both physical and spiritual but God is indivisible.
bob>I can see how both our concepts are not that far off, though you will think they are.
So what does the following mean?
And Samuel took the horn of oil, and anointed him in the midst of his brothers. And a spirit of the Lord passed over David from that day forth, (1 Sam. 16:13)
bob>So this is where the "holy Spirit" was upon David all the time, he did not have it from the womb on, right?
So Pharaoh said to his servants, "Will we find [anyone] like this, a man in whom there is the spirit of God? (Gen. 41:38)
Or the following about the Messiah:
The spirit of The Lord shall alight upon him: a spirit of wisdom and insight, a spirit of counsel and valor, a spirit of devotion and reverence for The Lord. (Is. 11:2)
"Spirit" is related to "soul" which appears in the Tanakh 412 times. Spirit could be considered the active part of the passive soul for a human. Even animals have souls, though they are different from human souls. Even an atheist has a spirit but not Godly holy spirit.
bob> Spirit and soul are often mixed together. Some consider the soul to be one's personality or being and the spirit to be the spirit or visa versa.
Humans are not remotely comparable to God. However, we are closer to Him, in certain respects, than all animals. While God created us like he created animals He did something unique for Adam that caused Adam to be in "God's image." The critical addition was God’s blowing into Adam's nostrils a "breath of life" (neshama in Hebrew), a modern human soul, and adding that to the the soul common to all animals (nefesh in Hebrew). This follows the Nachmanides commentary to Gen. 1:26: And God said: “Let us make man,” and to Gen. 2:7: And He breathed into his nostrils the breath of life. It is the neshama that sets us apart and above the animals.
Perception, Logical reasoning, cognition, speech, ability to do complex planning and similar traits unique to humans put us one step, only one, between animals and God. While God does all these things, and more, He does not do them sequentially as humans do.
When a human is said to have a holy spirit it means he is acting in a way that God wants him to act. We could say he is being inspired by God.
bob>It could be that person is lead by God's spirit, which is holy. Thanks