We have seen that Christ is uniformly exhibited in this primitive art as youthful and beardless; and on this very sarcophagus, side by side with this so-called sculpture of the Trinity, he is thus seen as the representative of the Deity giving the wheat-sheaf to Adam and the lamb to Eve. Yet we are asked to believe that in the very next group he is shown, in defiance of the uniform practice, as heavily bearded and of advanced age; and that the Almighty Father, who is substitutionally represented by the Son in the adjoining scene, is here exhibited, as well as the Eternal Spirit, in human form. Another remarkable discrepancy also occurs. The so-called figures of Adam and Eve are of most diminutive size, and not nearly as large as the infant 356 Christ in his mother’s arms in the scene of the adoration of the Magi immediately below;[603] and of these the prostrate figure supposed to represent the sleeping Adam is considerably the smaller of the two, and of the more feminine aspect. This incongruity is the more striking from the immediate proximity of the adult figures of Adam and Eve, to which the smaller ones bear no resemblance. The whole group seems to correspond better to Solomon’s celebrated judgment concerning the living and the dead child than to the creation of Eve. [Illustration: Fig. 107.--God Symbolized by a Hand appearing to Abraham.] So careful, indeed, were the early Christian artists to avoid any representation of “the King eternal, immortal, invisible,” that in the scenes where God spake from heaven to Abraham and to Moses he is only symbolically indicated by a hand stretched out to stay the knife of the patriarch, or surrounded by clouds, as if to show more strongly its figurative character, giving the tables of the law to the leader of Israel. The annexed suggestive example of this treatment, of which many others might be adduced, is from a sarcophagus in the Lateran. See also Fig. 71, p. 290. Throughout the whole range of sacred mosaics at Rome from the fourth 357 to the fourteenth century, according to Mr. Hemans, the Supreme Being is never represented except symbolically by means of a hand, usually holding a crown over the head of Christ, the Virgin, or the saints. In later art the hand is sometimes surrounded by a cruciform nimbus, to indicate more clearly its divine character. It is also seen stretched out from heaven in pictures of Christ’s baptism and transfiguration, of the agony in the garden, the passion, and ascension.[604]