An interesting corollary seems to be between the meaning of belief and the meaning of faith.
It seems James, the brother of Jesus, has full agreement with nearly the whole of modern epistemology.
Those like Peirce, Russell, Quine, Rorty and hosts of others assert that the truest sense of what belief entails in all contexts is behavior; that belief can only genuinely be said to exist when we act from what it supposes.
In the very same way, it makes no sense to pedestal Sola Fide, as Calvinistic thinkers glean from Pauline literature, because as James too says, in James 14-18:
“What good is it, my brothers, if someone says he has faith but does not have works? Can that faith save him? If a brother or sister is poorly clothed and lacking in daily food, and one of you says to them, ‘Go in peace, be warmed and filled,’ without giving them the things needed for the body, what good is that? So also faith by itself, if it does not have works, is dead. But someone will say, ‘You have faith and I have works.’ Show me your faith apart from your works, and I will show you my faith by my works.”
Whether we’re having a conversation about belief or faith in God or belief and faith in the safety rating of our cars, it has no sense in saying either exist or are worth a thing unless we actually move to act on them.
As it concerns Christian dogmatic peculiarities such as Predestination, Double Predestination, Dispensationalism, Mariology, Second Works Of Grace, “Once Saved, Always Saved”, or the Trinity itself, exactly what do they matter if it turns out that in fact, they have nothing in themselves we can act upon? It is in these that we find nothing important to believe at all related to Jesus, the Christ. As a matter of history alone, their only true import is that these ideas bound together a group of believers seeking to find meaning in Christ under those views; and they are many.
As it concerns the Atheist, whatever in life you choose to believe, learn from our Christian, mistaken totemic conflations and simply ask of your beliefs, “Are these worth acting on?” I think at that point, we’d all find a large accord in this existential sensibility of what is true, rather than Fregean sense of propositional truth-values. We ourselves would reject anything as being false, no matter what it is, if we found no good in acting on our beliefs and what they ask us to suppose.