But what should take its place in art? How could the new Christian ideas be expressed without form? Symbolism came in, but it was insufficient. A party in the Church rose up in favor of more direct representation. Art should be used as an engine of the Church to teach the Bible to those who could not read. This argument held good, and notwithstanding the opposition of the Iconoclastic party painting grew in favor. It lent itself to teaching and came under ecclesiastical domination. As it left the nature of the classic world and loosened its grasp on things tangible it became feeble and decrepit in its form. While it grew in sentiment and religious fervor it lost in bodily vigor and technical ability. [Illustration: FIG. 18.--CATACOMB FRESCO. CRYPT OF S. CECILIA. THIRD CENTURY.] For many centuries the religious motive held strong, and art was the servant of the Church. It taught the Bible truths, but it also embellished and adorned the interiors of the churches. All the frescos, mosaics, and altar-pieces had a decorative motive in their coloring and setting. The church building was a house of refuge for the oppressed, and it was made attractive not only in its lines and proportions but in its ornamentation. Hence the two motives of the early work--religious teaching and decoration. SUBJECTS AND TECHNICAL METHODS: There was no distinct Judaic or Christian type used in the very early art. The painters took their models directly from the Roman frescos and marbles. It was the classic figure and the classic costume, and those who produced the painting of the early period were the degenerate painters of the classic world. The figure was rather short and squat, coarse in the joints, hands, and feet, and almost expressionless in the face. Christian life at that time was passion-strung, but the faces in art do not show it, for the reason that the Roman frescos were the painter's model, not the people of the Christian community about him. There was nothing like a realistic presentation at this time. The type alone was given. In the drawing it was not so good as that shown in the Roman and Pompeian frescos. There was a mechanism about its production, a copying by unskilled hands, a negligence or an ignorance of form that showed everywhere. The coloring, again, was a conventional scheme of flat tints in reddish-browns and bluish-greens, with heavy outline bands of brown. There was little perspective or background, and the figures in panels were separated by vines, leaves, or other ornamental division lines. Some relief was given to the figure by the brown outlines. Light-and-shade was not well rendered, and composition was formal. The great part of this early work was done in fresco after the Roman formula, and was executed on the walls of the Catacombs. Other forms of art showed in the gilded glasses, in manuscript illumination, and, later, in the mosaics.