This doesn't answer my question about:
1. Is this what it is?
2. Does it mean that saying anything that comes from God is evil, is blasphemy?
3. How can you distinguish between what comes from God and what doesn't?
4. Why should it be unforgivable?
Question1:Well, Jesus spoke of blaspheming the Holy Ghost, I think, when the Pharisees accused Him of casting out devils by the prince of devils.That may imply that what they said was blaspheming against the Holy Ghost.In other words, they were saying that something that had been done by the Power of the Holy Ghost had been done by the prince of devils.I don't know for sure, though.
Question2:Saying that about anything that comes from God may be considered blasphemy, but the way Jesus said what He said, it makes it sound like that any other sin will be forgiven except blasphemy of the Holy Ghost.But once again, I couldn't tell you for sure.
Question3:I think in one of John's letters it says to "try the spirits', to see whether they are of God or not.Paul spoke of what he preached as simply "Jesus Christ and Him Crucified", and warned the Galatians that if anyone, even an angel, preached any other message than what they heard from Paul and his associates, then let them be accursed.
To tell if something is of God, determine whether it is Scriptural or not.If someone comes saying something that God's Word does not say, then it is not from God.Study the Bible so you will know whether something is Scriptural or not, and pray to God for understanding of His Word.
Question4:I really don't know why that is, but I know that if Jesus said it would not be forgiven, that there is some reason for it.
Also:
How does the Bible prove that God has the ultimate say in everything?
Well, one instance of such a thing is when Satan wanted to do afflict Job.Satan basically admitted that he could not do anything to Job if God did not allow it.God did allow him to do bad things to Job, but not to hurt Job himself, and Satan could not do that.He was only able to hurt Job himself when God finally allowed him to, and even then God would not let him kill Job.
I think the Bible also says, in my own words, that God will not allow us to be tempted above that we are able to resist.God also has the final say in how strong of temptations we receive.
How does the Bible prove that God will control events to bring judgement etc?
The Books of The Prophets in the Old Testament state that both the kingdoms of Israel, after they were divided, were deep in sin and that sin was the reason for their judgement.And it shows that God was controlling events to bring that judgement on them.
There are also other nations that God brought judgement on in the Old Testament.The Bible says that He is God, and that He changes not.What He did then, He could just as easily do now.
Isn't that paradoxically? Because you are saying he doesn't force humans, but comes a point when god need to force them. Also, why is god correct? Only because he is god? So, if he says a believer to kill his or her pets , he must follow god's orders?
I believe there are times when God will only let mankind go so far in what they want to do, even though He does give us freewill.
God is correct in all His Ways.People may think that they can find fault in Him, but they cannot.Even what they think to be fault is not.
God is infinitely more wise and powerful than any of us, so He knows what is right and what is wrong.And God is not lying about what is right and what is wrong, for the Bible says that God cannot lie.And I know that He would not lie anyway.
You should do whatever God tells you to do.I personally don't see any reason why God would tell you to kill your pets, but you should still obey Him if He did.We may not always know why God tells us to do certain things, but, like I said, He is infinitely more Wise than we are, and He knows what we need more than we do.
And the Bible says that all things work together for the good to them that love God, who are the called according to His purpose.