You believe that God is one; you do well. The demons also believe─and they shudder.
Consider the village atheists, freethinkers, and secular humanists such as Sam Harris, Christopher Hitchens, and Richard Dawkins. They openly and aggressively deny the existence of a God. “Reason,” as they call it, has caused them to arrive at a conclusion that not even the demons consider. The demons believe that God is one─and they shudder. Do you see the irony?
The truth illustrated in this verse speaks to the absurdity of atheism. Scripture speaks of the existence of a sovereign God. Creation itself testifies to the existence of a Creator. The shudders of demons declare that there is one God whom we should fear. How corrupt and sinful and vile is humanity, that it would degrade itself to the point of denying the existence the the One who gave it life?
I pray that God would soften the hearts and open the eyes of men and women such as these─that they might accept the truth before the truth is forced upon them.
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Your argument that, the Bible is true, there fore what is says is true, is flawed. The premise is the conclusion. There is no "reason" to accept the premise or any conclusion drawn from it. If you could make an argument where "the Bible is true" is the conclusion, and not an unsubstantiated premise that must be accepted as fact, then any argument you make based on the truthfulness of the Bible would have more weight. An appeal to tradition or popularity or the ad hominem attacks used above are diversions from the issue under discussion.
What is ironic is your assertion of belief as fact. That you don't need, or want, or have, a reason to accept something as fact beatifies ignorance and gullibility. Show the trembling demon, and not the Bible verse, and the world will believe, every atheist included.
I hope you intend to let God do forcing and not take matters into your own hands. There are, thankfully, laws against that.