predecessors 'rulers of Sodom'; John was not scolding when he called his hearers 'ye offspring of vipers' but charging them with moral corruption and creeping earthliness. The summary of his preaching is like a succession of lightning flashes. We can but note in a word or two each flash as it flames and strikes. The remarkable thing about his teaching is that, in his hands, the great hope of Israel became a message of terror, the proclamation of the impending kingdom passed into a denunciation of 'the wrath to come,' set forth with a tremendous wealth of imagery as the axe lying at the root of the trees, the fan winnowing the wheat from the chaff, the destroying fire. That wrath was inseparable from the coming of the King; for His righteous reign necessarily meant punishment of unrighteousness. So all the older prophets had said, and John was but carrying on their testimony. So Christ has said. No more terrible warnings of the certain judgment of evil which is involved in His merciful work, have ever been given, than fell from the lips into which grace was poured. We need to-day a clearer discernment of the truth which flamed before John's eyes, that the full proclamation of the kingdom of heaven must include the plain teaching of 'the wrath to come.' Next comes the urgent demand for reformation of life as the sign of real repentance. John's exhortation does not touch the deepest ground for repentance which is laid in the heart-softening love of God manifested in the sacrifice of His Son, but is based wholly on the certainty of judgment. So far, it is incomplete; but the demand for righteous living as the only test of religious emotion is fully Christian, and needed in this generation as much as it ever was. All preachers and others concerned in 'revivals' may well learn a lesson, and while they follow John in seeking to arouse torpid consciences by the terrors which are a part of the gospel, should not forget to demand, not merely an emotional repentance, but the solid fruits which alone guarantee the worth of the emotion. The next flash strikes the lofty structure of confidence in their descent. John knows that every man in that listening crowd believes that his birth secured him joy and dominion when Messiah came. So he wrenches away this shield against which his sharpest arrows were blunted. What a murmur of angry denial must have met his contemptuous, audacious denial of their trusted privilege! The pebbles on the Jordan beach, or the loose rocks scattered so plentifully over the desert, could be made as good sons of Abraham as they. A glimpse of the transference of the kingdom to the despised Gentiles passed across his vision. And in these far-reaching words lay the anticipation, not only of the destruction of all Jewish exclusiveness, but of the miracles of quickening to be wrought on the stony hearts of those beyond its pale.