There are very stern warnings in Scripture!!!
“Thus says the LORD, ‘Cursed is the man who trusts in mankind And makes flesh his strength, And whose heart turns away from the LORD. For he will be like a bush in the desert And will not see when prosperity comes, But will live in stony wastes in the wilderness, A land of salt without inhabitant. Blessed is the man who trusts in the LORD And whose trust is the LORD.’ ” Jeremiah 17:5-7.
Arminians will deny being like this man who trusts in mankind, but the Arminian trusts in his “free will” to be the determining factor as to whether or not he will be saved. He chooses Christ through his “free will”. He keeps his faith through “his free will”. He turns away from the LORD of Scripture who unconditionally elects and declares: “That is not the God I serve!”
On the other hand, the Calvinist trusts in the LORD alone to handle all the points of salvation. The Calvinist continually seeks the LORD and focuses on the LORD and His works. Salvation is not a joint accomplishment between God and man to the Calvinist. The Calvinist knows that if salvation was dependent even as little as 1% on himself, that he would not be saved. He truly trusts in the LORD alone for his salvation and attributes his salvation to grace alone.
Scripture also sternly warns us:
“For if we go on sinning willfully after receiving the knowledge of the truth, there no longer remains a sacrifice for sins, but a certain terrifying expectation of judgment, and THE FURY OF A FIRE WHICH WILL CONSUME THE ADVERSARIES. Anyone who has set aside the Law of Moses dies without mercy on the testimony of two or three witnesses. How much severer punishment do you think he will deserve who has trampled under foot the Son of God, and has regarded as unclean the blood of the covenant by which he was sanctified, and has insulted the Spirit of grace? For we know Him who said: “VENGEANCE IS MINE, I WILL REPAY.” And again, THE LORD WILL JUDGE HIS PEOPLE.” It is a terrifying thing to fall into the hands of the living God.” Hebrews 10:26-31.
I think this Scripture applies to Arminians who steadfastly continue to hang on to Arminianism despite receiving knowledge of the truth of Calvinism. They hang on to the false doctrine that Jesus died for everyone (“Universal Atonement” – The Third Point of Arminianism) and they love to speak about the power in Christ’s blood. But, Arminians realize that their doctrine forces them to conclude that Christ’s blood (as they claim, shed for everyone) by itself did not save, “purchase”, or “redeem” anyone, because they admit that most people are not saved. Arminians claim that it is up to man to generate his own faith through his own free will in order to make Christ’s blood effective to save. They claim that the only difference between the saved and the unsaved is not Christ’s blood, because everyone gets the blood, but rather the only difference is whether or not a certain individual will generate his own faith through his own free will to make the blood effective. According to this logic of these Arminians, man’s faith, not Christ’s blood, is the determining factor as to whether or not one will be saved.
Because Arminians talk about the blood all the time, it is true that in a sense they are trampling it, not in the sense of being hateful to it but in the sense of treating it as ineffective by itself, like the description in Matthew 5:13: “…if the salt has become tasteless, how will it be made salty again? It is good for nothing anymore, except to be thrown out and trampled under foot by men.”
This Hebrews 10:26-31 Scripture does not apply to the person who steadfastly rejects Christ. That person did not receive the knowledge of truth as stated in Hebrews 10:26. That person is not sanctified, so to speak, as is stated in Hebrews 10:29. That person does not talk about the blood of Christ. Rather, this Hebrews 10:26-31 Scripture speaks about those received or were exposed to knowledge of the truth and were sanctified so to speak but nevertheless denied the power of the blood and insulted the Spirit of grace. Rather, this Scripture applies to Arminians who love to talk about Christ’s blood all the time, but who really treat Christ’s blood as ineffective by itself , that it does not actually “save”, “purchase”, nor “redeem” anyone, because they teach that most people are not saved and that it is up to man to generate his own faith through his own free will in order to make Christ’s blood effective to save.
Likewise, the Arminian can be compared to the one who insults the Spirit of Grace as is mentioned above in Hebrews 10:29. Think of a situation in which your father took you out to a very expensive dinner and even left the tip in addition. However, you did not think that the tip was sufficient so you add your $5 to the tip. Wouldn’t your father be insulted that you thought that what he did was not enough? Likewise, Arminians insult God by their doctrine that believes that the blood of Christ is not enough, they feel that they must add their own tip of faith. The Calvinist thinks of faith as a gift of God; the Arminian thinks that faith is their own gift to God which is necessary to secure salvation.
Conclusion
“For this reason we must pay much closer attention to what we have heard, so that we do not drift away from it. For if the word spoken through angels proved unalterable, and every transgression and disobedience received a just penalty, how will we escape if we neglect so great a salvation? …” Verses 1-3.