Many say now, and at all times many have said, to those who had caught glimpses of some new lesson God was desiring to teach: "You admit that souls have been renewed and character built up and spiritual life preserved without this new teaching. Why then can you not let us alone? In your pursuit of the best you may destroy the good; and no harm can happen if you keep the improved faith to yourself." But they have forgotten Yahweh's solemn "Whosoever will not hearken, I will require it of him." If we refuse to hear when the Lord hath spoken, evil must come of it. Indeed, though the evils of heresy may be more dramatically and strikingly manifest, those of stagnation and a refusal to learn may be much more destructive of the common faith. For refusal to acknowledge truth has far wider issues than the loss of any particular truth. It indicates and reinforces an attitude of soul which, if persisted in, will allow the Church that adopts it to drift slowly away from living contact with the minds of men. So drifting, it shrinks into a _coterie_, and its every activity becomes infected with the curse of futility. On both sides, therefore, there is danger for us, as there was for the Old Testament Church; and we turn with quickened interest to the test, the criterion, by which Deuteronomy would have the prophets tried. It puts the very question which the line of thought we have been pursuing could not fail to suggest: "How shall we know the word which Yahweh hath not spoken?" If a prophet spoke in the name of other gods he was to die; that had already been determined in the thirteenth chapter, and it is repeated here. But the prophet who should speak a word presumptuously in the name of Yahweh, which He had not commanded, was to be in the same condemnation. It was, therefore, of the last importance that there should be means of detecting when this last evil occurred. The test is this: "When a prophet speaketh in the name of Yahweh, if the thing follow not, nor come to pass, that is the thing which Yahweh hath not spoken." The strange notions of Duhm and others in regard to this have been already dealt with (_vide_ pp. 248 f.). There, too, it has been shown that the prophecy here spoken of must have been prophecy in its narrower sense, prophecy dealing with promises of _immediate_ judgment and deliverance. Furthermore, this is set forth here as a test applicable to prophets in all ages of the history of Israel. It lies, too, in the nature of the case that it must always have been the popular test. The announcement of things to come before they came was made, at least partially, with the view of impressing the populace, and of gaining their confidence and attention. They must consequently have been continually on the alert to apply this test, and all that is here done is to acknowledge it in the fullest manner as a right and Divinely approved criterion.