§ 24. Finally: the ascertainment of the sanctity of color is not left to human sagacity. It is distinctly stated in Scripture. I have before alluded to the sacred chord of color (blue, purple, and scarlet, with white and gold) as appointed in the Tabernacle; this chord is the fixed base of all coloring with the workmen of every great age; the purple and scarlet will be found constantly employed by noble painters, in various unison, to the exclusion in general of pure crimson;--it is the harmony described by Herodotus as used in the battlements of Ecbatana, and the invariable base of all beautiful missal-painting; the mistake continually made by modern restorers, in supposing the purple to be a faded crimson, and substituting full crimson for it, being instantly fatal to the whole work, as, indeed, the slightest modification of any hue in a perfect color-harmony must always be.[22] In this chord the scarlet is the powerful color, and is on the whole the most perfect representation of abstract color which exists; blue being in a certain degree associated with shade, yellow with light, and scarlet, as absolute _color_, standing alone. Accordingly, we find it used, together with cedar wood, hyssop, and running water, as an emblem of purification, in Leviticus xiv. 4, and other places, and so used not merely as the representative of the color of blood, since it was also to be dipped in the actual blood of a living bird. So that the cedar wood for its perfume, the hyssop for its searchingness, the water for its cleansing, and the scarlet for its kindling or enlightening, are all used as tokens of sanctification;[23] and it cannot be with any force alleged, in opposition to this definite appointment, that scarlet is used incidentally to illustrate the stain of sin,--"though thy sins be as scarlet,"--any more than it could be received as a diminution of the authority for using snow-whiteness as a type of purity, that Gehazi's leprosy is described as being as "white as snow." An incidental image has no authoritative meaning, but a stated ceremonial appointment has; besides, we have the reversed image given distinctly in Prov. xxxi.: "She is not afraid of the snow for her household, for all her household are clothed with _scarlet_." And, again: "Ye daughters of Israel, weep over Saul, who clothed you in scarlet, with other delights." So, also, the arraying of the mystic Babylon in purple and scarlet may be interpreted exactly as we choose; either, by those who think color sensual, as an image of earthly pomp and guilt, or, by those who think it sacred, as an image of assumed or pretended sanctity. It is possible the two meanings may be blended, and the idea may be that the purple and fine linen of Dives are worn in hypocritical semblance of the purple and fine linen of the high priest, being, nevertheless, themselves, in all cases typical of all beauty and purity. I hope, however, to be able some day to enter farther into these questions with respect to the art of illumination; meantime, the facts bearing on our immediate subject may be briefly recapitulated. All men, completely organized and justly tempered, enjoy color; it is meant for the perpetual comfort and delight of the human heart; it is richly bestowed on the highest works of creation, and the eminent sign and seal of perfection in them; being associated with _life_ in the human body, with _light_ in the sky, with _purity_ and hardness in the earth,--death, night, and pollution of all kinds being colorless. And although if form and color be brought into complete opposition,[24] so that it should be put to us as a matter of stern choice whether we should have a work of art all of form, without color (as an Albert Durer's engraving), or all of color, without form (as an imitation of mother-of-pearl), form is beyond all comparison the more precious of the two; and in explaining the essence of objects, form is essential, and color more or less accidental (compare Chap. v. of the first section of Vol. I.); yet if color be introduced at all, it is necessary that, whatever else may be wrong, _that_ should be right; just as, though the music of a song may not be so essential to its influence as the meaning of the words, yet if the music be given at all, _it_ must be right, or its discord will spoil the words; and it would be better, of the two, that the words should be indistinct, than the notes false. Hence, as I have said elsewhere, the business of a painter is to paint. If he can color, he is a painter, though he can do nothing else; if he cannot color, he is no painter, though he may do everything else.