A faith that does not rest on scriptural truth or objective evidence would be fideism, which is essentially the leap-in-the-dark faith of the neo-orthodox. According to Karl Barth, a person with faith can accept a contradiction, rest in it, and even base their life on the contradiction. A blind faith such as this would be an irrational act of subjective arbitrariness. Herman Hanko noted: "Faith is not the acceptance of something which no one can prove, a kind of blind acceptance of the unprovable" (Battle for the Bible, p. 15). Charles Spurgeon wrote: "Faith is not a blind thing; for faith begins with knowledge. It is not a speculative thing; for faith believes facts of which it is sure" (All of Grace, pp. 46-47). Pastor Norvell Robertson stated: "Faith, properly so called, always rests upon evidence; hence to believe without evidence is not rational; and in respect to our relations to God, it is extremely dangerous" (Handbook of Theology, p. 62). Pastor Conjurske observed: "Any faith which sets facts at defiance is no faith at all, but only superstition. The Bible squarely bases faith upon facts, and faith cannot exist without them" (Olde Paths, Sept., 1997, pp. 212-213). J. Gersham Machen declared: "It is a dangerous thing to encourage faith in what is not true" (What is Faith, p. 179). Puritan Thomas Watson pointed out: "A man can no more believe without knowledge than the eye can see without light" (Body of Divinity, p. 57). Theodore Beza wrote: "It is beyond the ability of anyone to believe that which he is ignorant of" (Christian Faith, p. iv). KJV translator Lancelot Andrewes noted: "Faith hath ever a ground--a reason for it, and is ready to render it" (Selected Writings, p. 114). John Wycliffe maintained that “every point of faith is included in Scripture” (Levy, John Wyclif, p. 355).
If anyone can claim that something is true just because he assumes or believes it to be true or has blind faith in it, then he can believe without any sound justification anything he wants to believe. If faith can be claimed as the basis for accepting blindly opinions or claims that may be contradictory to scriptural truth, how could God hold anyone accountable for mistaking His commands for their contradictions? A command and its contradiction cannot be both true. Therefore, it is important that believers break down the false opposition which has been set up between truth and faith. Glenn Conjurske pointed out: "We all no doubt have our own doctrinal predilections, but to allow our doctrines to dictate what we regard as facts is as dangerous as it is fraudulent, for it deprives us of one of the most effectual checks against false doctrine" (Olde Paths, June, 1996, p. 135). Michael Sproul wrote: “Faith is a strong argument, but a believer is only to have faith in what God says, not [in] a recent man-made interpretation that turns both history and word definitions inside out” (God’s Word Preserved, p. 91).
It can be concluded that sound biblical faith would come by hearing, receiving, believing, doing, or following the truth of God's Word (Rom. 10:17, Mark 4:20, Luke 11:28, Luke 8:21). Would the hearing in Romans 10:17 be one that receives or accepts the word of God and obeys it, or could it be a superficial hearing that may refuse to obey it (James 1:22-23, James 2:14, James 2:17, Matt. 13:13, Rom. 2:13)? It should be clear that the hearing in Romans 10:17 does not mean being a hearer only. Can a hearing of faith (Gal. 3:2) be connected to obeying the truth (Gal. 3:1)? Could biblical faith be linked to an acknowledging of the truth (2 Tim. 2:25)? Can biblical faith involve rejecting the truth or would rejecting the truth indicate a dead faith? To say that a person has sound faith in something is to say that he acknowledges or accepts the truth concerning that something. According to the overall teachings of Scripture, biblical faith clearly would not come from a denial of the truth in the Scriptures or by following false claims or fallacies. It can be concluded from the Scriptures that sound true faith would not come from believing or following opinions, speculations, or traditions of men (Mark 7:7-9, Col. 2:8) or from following their misinterpretations or twistings of Scripture (2 Tim. 2:15, 2 Pet. 3:16). Would dead faith in error, falsehoods, fallacies, false claims, opinions of men, or non-scriptural teachings be the same thing as biblical faith?
Assuming by use of the fallacy of begging the question that the KJV is inspired cannot be justified by claiming it is a matter of faith. Someone could assume or believe by faith that the words of a false prophet were the words of God, but it would not be sound biblical faith.