St. Augustine after thirty years of age, and other Fathers, bear testimony to a sudden, enduring and extraordinary change in themselves, called _conversion_[66].
Now this experience has been repeated and testified to by countless millions of civilized men and women in all nations and all degrees of culture. It signifies not whether the conversion be sudden or gradual, though, as a psychological phenomenon, it is more remarkable when sudden and there is no symptom of mental aberration otherwise. But even as a gradual growth in mature age, its evidential value is not less. (Cf. Bunyan, &c.)
In all cases it is not a mere change of belief or opinion; this is by no means the point; the point is that it is a modification of character, more or less profound.
Seeing what a complex thing is character, this change therefore cannot be simple. That it may all be due to so-called natural causes is no evidence against its so-called supernatural source, unless we beg the whole question of the Divine in Nature. To pure agnostics the evidence from conversions and regeneration lies in the bulk of these psychological phenomena, shortly after the death of Christ, with their continuance ever since, their general similarity all over the world, &c., &c.
Christianity, from its foundation in Judaism, has throughout been a religion of sacrifice and sorrow. It has been a religion of blood and tears, and yet of profoundest happiness to its votaries. The apparent paradox is due to its depth, and to the union of these seemingly diverse roots in Love. It has been throughout and growingly a religion--or rather let us say _the_ religion--of Love, with these apparently opposite qualities. Probably it is only those whose characters have been deepened by experiences gained in this religion itself who are so much as capable of intelligently resolving this paradox.
Fakirs hang on hooks, Pagans cut themselves and even their children, sacrifice captives, &c., for the sake of propitiating diabolical deities. The Jewish and Christian idea of sacrifice is doubtless a survival of this idea of God by way of natural causation, yet this is no evidence against the completed idea of the Godhead being [such as the Christian belief represents it], for supposing the completed idea to be true, the earlier ideals would have been due to the earlier inspirations, in accordance with the developmental method of Revelation hereafter to be discussed[67].