#1. What constitutes a valid argument?
It is a blessed fact that salvation does not depend upon reasoning and disputation, and that one need be neither a philosopher nor a logician to perceive the purpose of the ages. Perhaps no writer of Scripture so emphasizes the utter failure of the natural mind to
understand the truth as Paul, yet, advocate as he was for thesupremacy of faith, and opponent as he was of “doubtful disputations” and of ‘vain deceitful philosophy”, no writer is so argumentative, and no writer appeals so much to the mind quickened to appreciate true reasoning.
“Faith cometh by hearing, and hearing by the Word of God” (Rom. x. 17).
Yet, to borrow the argument of verse 14:--
“How shall they hear, who do not understand, and how can faith come, if the truth presented be not realized?”
To the Ethiopian, Philip said:--
“Understandest thou what thou readest?” (Acts viii. 30).
To the Pharisees, the Lord said:--
“Why do ye not understand My speech? even because ye cannot hear My word? (John viii. 43).
Solomon said:--
“Knowledge is easy unto him that hath understanding” (Prov. xiv. 6).
While mere reasoning may be a mark of infidelity, faith is never unreasonable, nor does it discredit reason. In one of the most spiritual passages in Romans the apostle speaks of “reasonable” (logikos) service (Rom. xii. 1). We read of Paul “reasoning” (dialegomai), “opening” (dianoigo), and “alleging” (paratithemi) out of the Scriptures concerning Christ, and his epistles abound with such signs of argument as the frequent use of the words “for”, “wherefore”, “for this cause”, and the like. While no soul will ever miss salvation because of inability to appreciate a syllogism, the teacher of truth may nevertheless sometimes err and lead his hearers astray if he has no true understanding of what constitutes valid argument.
There is indeed room for a book that will do for Logic in the Scriptures, what Dr. Bullinger’s “Figures of Speech used in the Bible” did for figurative language in the Scriptures. To attempt such a work is beyond our present powers, but though these notes be somewhat fragmentary and the range limited, they may be of service in quickening the reader’s interest in this important matter.
Ability correctly to answer the question, What constitutes a valid argument? will confer a double blessing, viz., it will provide us with the means whereby we shall be able to appreciate more clearly the divine arguments of the Scriptures, and it will enable us to appraise the truth and detect the errors and fallacies in the arguments presented in the teaching of others.
Upon the ground of the all-sufficiency of faith, some object to the attempt to analyze the processes of correct thinking, while others refuse an analysis of logical processes upon the ground that common sense is sufficient. Archbishop Whately says:--
“The generality have a strong predilection in favour of common sense, except in those points in which they, respectively, possess the knowledge of a system of rules: but in these points they deride anyone who trusts unaided common sense. A sailor, e.g., will perhaps despise the ‘pretensions’ of medical men, and prefer treating a disease by ‘common sense’; but he would ridicule the proposal of navigating a ship by common sense, without regard to the maxims of nautical art.”
Logic is the name given to the science of reasoning. It displays the principles on which argument is conducted, and tabulates certain rules which are derived from these principles, so that we shall be guided into the truth, and guarded from error.
The objection to logic as being unserviceable in the discovery of truth may hold good in the realm of natural science, but it is not valid in the realm of scriptural revelation. In that realm we do not set out to discover truth by processes of reasoning, but, on the contrary, believe that in the Scriptures we already posses a complete revelation, and that we can and should use every legitimate means to arrive at the right understanding of that revelation, and to test all that professes to be an exposition of its teaching.
Another superficial objection to logic is that in the hands of the unscrupulous the very processes of true reasoning can apparently be made to lead to false conclusions. But this is no fault of logic: in such a case, clearly, error has crept into one or both of the premises, and the process is no more an objection to the true place of logic than the fact that certain calculations based on the assumption that nineteen, and not twenty, shillings made a pound, had produced a false answer, would be an objection to arithmetic. Changing the figure, we must first of all secure a correct translation, then, granted that our terms are unambiguous, and our premises true, the conclusion is as inevitable as is the conclusion of an arithmetical sum.
Neither in the Scriptures, nor in conversation, are arguments always stated at full length, but it is safe to say that every valid argument may be expressed in that form known since the days of Aristotle as the syllogism. The term “argument” is used popularly in a somewhat wider sense than is intended in logic, but strictly speaking every argument consists of two parts, viz., that which is proved, and the means whereby it isproved. That which is proved is called the “conclusion”, and the means whereby it is so proved the “premises”. Here is a simple example of a syllogism:--
All tyrants deserve death . . . . . Caesar was a tyrant . . . . . Therefore he deserved death.
We are not at the moment concerned with the morals of the matter before us, but with the process of reasoning and its inevitable conclusions. There is no possible way of avoiding the conclusion, “Therefore he deserved death”, except by questioning and disproving some feature of the premises. Either it is not true that all tyrants deserve death, or it is true. Either it is true that Caesar was a tyrant, or it is not true. But if thesepremises be conceded, then the conclusion is valid and unassailable.
One great value of the syllogism is the way in which it forces revision of the premises or steps that lead to an erroneous conclusion. For example, there is nothing apparently wrong with the following process of reasoning, yet the conclusion is so obviously untrue that it compels a search for error in the premises that might otherwise have escaped us:--
White is a colour . . . . . Black is a colour . . . . . Therefore black is white.
When we realized that much that passes for scriptural doctrine will not stand the test of the syllogism, we may look more kindly upon its application, and allow some place for an explanation of its use.
Without allowing the subject to occupy undue space, we hope from time to time to give a few notes upon the importance of correct reasoning and valid argument. This we hope will prove to be of service in the elucidation of the truth of the Scriptures, and at the same time provide some means of testing the doctrines propounded by teachers and writers in these days of seducing spirits and doctrines of demons.
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[NOTE.—As this series of articles is somewhat outside the bounds of actual
exposition and teaching, and deals with the raw material, and the processes,
rather than with the finished article, and as we wish our pages to be helpful to all
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