Selection from True Christian Religion ~ Emanuel Swedenborg
If there were no Word there would be no knowledge of God, of heaven and hell, or of a life after death, still less of the Lord.As there are some who hold, and who have thoroughly convinced themselves, that man may know without the Word of the existence of God, and of heaven and hell, and of other things taught by the Word; such cannot properly be appealed to from the Word, but only from the light of natural reason, since they do not believe in the Word, but only in themselves. Inquire then, from the light of reason, and you will find that there are in man two faculties of life, which are called understanding and will — the understanding is subject to the will, but not the will to the understanding; for the understanding merely teaches and points out what ought to be done from the will; and for this reason many who are of an acute genius, and who understand better than others the moral principles of life, still do not live according to them; but if their will favored them it would be otherwise. Inquire further, and you will find that man's will is his selfhood [proprium] and that this is evil from birth, and that from this comes the falsity in the understanding. When you have found out these things, you will see that man of himself has no wish to understand anything except what is from the selfhood of his will, and if this were his only source of knowledge, he would have no wish from his will's selfhood to understand anything but what pertains to self and the world; and everything above this would be in thick darkness. For instance, in looking at the sun, moon, and stars, if he should think about their origin, he could not think otherwise than that they exist from themselves. Could he raise his thoughts higher than many of the learned in the world, who while knowing from the Word that all things were created by God, yet acknowledge nature? If these had known nothing from the Word what would they have thought? Do you suppose that the ancient wise men, such as Aristotle, Cicero, Seneca, and others, who wrote about God and the immortality of the soul, obtained this knowledge primarily from their own understanding? No; they obtained it from others by its having been handed down from those who first knew of it from the ancient Word.... Neither do the writers on Natural Theology derive any such knowledge from themselves; they merely confirm by rational deductions what they knew from the church where the Word is, and possibly some among them confirm and yet do not believe.
(True Christian Religion 273)