1.God is not worried about how we view his nature when it comes to his unity and he sends his Holy Spirit either way? (if that is the case shouldn't the Holy Spirit enlighten the believers with the truth of his nature, trinity, oneness, something else?)
The problem is even by the trinity doctrine, those who really understand this doctrine, understand that this knowledge surpasses the natural knowledge available to men. So we believe it in faith, not in intellect.
The trinity doctrine makes about diddly squat sense intellectually. The *best* intellectual explanation of the trinity I have found is in information theory... but even this explanation is woefully insufficient compared to the reality of Christ, the Father, and the Holy Spirit... but it does give our limited mental understanding something to chew on to make it feel like it understands it a little better. Here is the explanation:
Shannon-Weaver Communication Model discovered in 1948
This is the theoretical basis of all communication, including communication in the computer revolution.
The simplest way to draw this chart is with, Sender -> Signal -> Decoder. The decoder, decodes so that the recipient/destination can understand the message.
With the trinity, the information source is the Father God. He is the will of God.
The signal is Christ, who is the word of God (logos).
The spoken word (rhema) is the Holy Spirit, which is God's word in action, from the will of the Father, according to the Logos, acting upon reality (decoding the logos = rhema).
This is the mechanism of God's operation. But dumbing it down this much isn't exactly the truth, but it's an illustration.
We can see this unfolding of God working in Genesis 1.
In the beginning God created the heavens and the earth. The earth was without form, and void; and darkness was on the face of the deep. And the Spirit of God [breath of God, Holy Spirit, that which decodes and brings to pass God's word] was hovering over the face of the waters. Then God said, “Let there be light [the word / Christ]”; and there was light. 4 And God saw the light, that it was good [The Father, the will and character of God];
I think if you want to say God is one, and then include Christ as God and the Holy Spirit as God then that's fine. I mean, certainly the Oneness movement doesn't see the Holy Spirit as a separate entity? Neither should they see Christ as a separate from God.
But either way you go with the doctrine, trinity or God is one described in 3 ways, both are wrong, because both are intellectual understandings.
What matters is believing scripture in faith, and not doctrines of men. In a poem I wrote, I put the line, "When God's word is silent all creation echos."
Even if you are in the singleness of God camp, Christ is still God's word. God without his word, means that God can't speak. God loses the ability to speak because he no longer has words, if those words were in Sheol during Christ's death on the cross. I do personally believe during those 3 days, it was the darkest moment in all time. The spirit of God, could only do what was already prophesied by God in the past, but new revelation? New words from God? The Spirit had only what had Christ established in dominion and authority on Earth.
And so God himself would have failed had Christ not been raised by the words already spoken. And God could utter no other word to change it, because the Father had only one begotten Son as the word.
2. Something is wrong in the whole pentecostal movement?
They're a bit legalistic often. There are some people in the grace Pentecostal movement, and that's where I get my doctrine from.
3. The gifts of the Spirit manifest themselves in the same way because it is not from God but from men?
There are fake gifts in manifestation. Real being slain in the spirit vs. just choosing to fall over. There is also such a thing as expectation. People can behave according to expectation, this is the principle hypnotism falls under. It's a demonic practice, but no one who believes in it will be hypnotized because they wont allow that on themselves.
So just because sometimes it goes astray doesn't mean there aren't gifts in manifestation.... but these should be the gifts according to the word of God, found in 1 Corinthians 12... concerning miraculous gifts, not the character quality gifts in Galatians 5:22.
1 Corinthian 12 Gifts:
1. Word of wisdom
2. Word of Knowledge
3. Prophecy
4. Tongues
5. Interpretation of Tongues
6. Miracles
7. Supernatural Faith
8. Gifts of Healings
9. Discerning of Spirits
Tongues, if you study it from scripture, has 3 manifestations. 1 - As a sign to unbelievers 2 - As spoken ministry to the church where interpretation is present, so to make tongues equivalent to prophecy which is for the edification of the church 3 - As prayer language to be spoken to God, which edifies the one who speaks it.
In the OT, they had 7 gifts. But if you study history and Jewish tradition, they also had Tongues in the OT, but you wont find it in the scripture that I have read.
But the Jews know that when the High Priest entered the Holy of Hollies on the day of atonement once a year, in there he could speak a supernatural language of heaven.
My favorite gift is supernatural faith. God gave me all kinds of ordinary faith, the faith of Abraham and the faith of God himself. But supernatural faith is great stuff... it usually works with a miracle... or maybe like word of wisdom. I don't totally understand it, I just know it's pretty dang awesome when it happens!