There is no scriptural teaching that the devil believes the testimony of scripture.
Isn't it common sense ?
You're speaking of human wisdom ?
I'd wager that we both know what that's worth, don't we ?
Satan is a highly intelligent demon. If he is the father of lies, he must know what the truth is. He is fully aware of the truth of the Gospel, and tries to get us to deny it through our thoughts or actions. Thus, the devil is fully aware of the testimony of Scripture. Does he trust in it? Does he live it? NO! But according to your previous definition of saving faith, you indicated that belief in the Scriptural testimony was sufficient. That is not enough of a qualification - unless you care to redefine what "belief" is.
I believe that Satan is, actually, somewhat self-deluded. His pride blinds him to much truth.
OTOH ... I have no problem redefining my definition of faith to include 'acceptance' of the truths of God.
I'd wager that we both know what that's worth, don't we ?
I don't think "common sense" was what Paul was speaking about when he had a disdain for "philosophy! While truth is not always evident, we don't need to have all facts given to us explicitly in Scripture. But it IS implicit. If the devil is the father of lies (as God Himself said), it is presumed that the devil is aware of the truth - one must know truth to be able to twist it. Recall, Lucifer saw God face to face. He is aware of the truth. He refuses to abide in it.
Lucifer is proud. So proud that his will of choosing himself over God is irrevocable. For him to have an irrevocable choice, he must have been aware of what the truth was in its fullest definition. The Book of Revelation suggests that Satan will NEVER repent. Thus, this suggests that his will is irrevocable - and thus, is aware of the truth. If he wasn't aware of the truth, there would be a chance that he would repent. Implicitly in Scripture, then, we find that Lucifer is aware of the truth, but will NEVER follow it.
Brother in Christ