Artists lent their aid to spread the new ideas, and many cartoons made the doctrines and the aims of the Reformers plain to the common people. These pictures were sometimes used to illustrate the title-pages of the controversial literature, and were sometimes published as separate broadsides. In one, Christ is portrayed standing at the _door_ of a house, which represents His Church. He invites the people to enter by the door; and Popes, cardinals, and monks are shown climbing the walls to get entrance in a clandestine fashion.(306) In another, entitled the _Triumph of Truth_, the common folk of a German town are represented singing songs of welcome to honour an approaching procession. Moses, the patriarchs, the prophets, and the apostles, carry on their shoulders the Ark of the Holy Scriptures. Hutten comes riding on his warhorse, and to the tail of the horse is attached a chain which encloses a crowd of ecclesiastics—an archbishop with his mitre fallen off, the Pope with his tiara in the act of tumbling and his pontifical staff broken; after them, cardinals, then monks figured with the heads of cats, pigs, calves, etc. Then comes a triumphal car drawn by the four living creatures, who represent the four evangelists, on one of which rides an angel. Carlstadt stands upright in the front of the car; Luther strides alongside. In the car, Jesus sits saying, _I am the Way, and the Truth, and the Life_. Holy martyrs follow, singing songs of praise. German burghers are spreading their garments on the road, and boys and girls are strewing the path with flowers.(307) Perhaps the most important work of this kind was the _Passional Christi et Antichristi_.(308) Luther planned the book, Luke Cranach designed the pictures, and Melanchthon furnished the texts from Scripture and the quotations from Canon Law. It is a series of pairs of engravings representing the lives of our Lord and of the Pope, so arranged that wherever the book opened two contrasting pictures could be seen at the same time. The contrasts were such as these:—Jesus washing the disciples’ feet; the Pope holding out his toe to be kissed: Jesus healing the wounded and the sick; the Pope presiding at a tournament: Jesus bending under His Cross; the Pope carried in state on men’s shoulders: Jesus driving the money-changers out of the Temple; the Pope and his servants turning a church into a market for Indulgences, and sitting surrounded with strong boxes and piles of coin. It was a “good book for the laity,” Luther said.