Christians used to sign themselves with the sign of the cross on many occasions, and figures of the cross were early set up in churches. But crucifixes (which are figures of our Lord on the cross, although ignorant people sometimes call the cross itself a crucifix) were not known until hundreds of years after the time of which we are now speaking. PART II. The church-service of Christians was always the same as to its main parts, although there were little differences as to order and the like. Justin Martyr, who lived (as we have seen) about the middle of the second century,[18] describes the service as it was in his time. It began, he says, with readings from the Scriptures; then followed a discourse by the chief clergyman who was present; and there was much singing, of which a part was from the Old Testament psalms, while a part was made up of hymns on Christian subjects. The discourses of the clergy were generally meant to explain the Scripture lessons which had been read. At first these discourses were very plain, and as much as possible like ordinary talk; and from this they got the name of _homilies_, which properly meant nothing more than _conversations_. But by degrees they grew to be more like speeches, and people used to flock to them, just as many do now, from a wish to hear something fine, rather than with any notion of taking the preacher's words to heart, and trying to be made better by them. And in the fourth century, when a clergyman preached eloquently, the people used to cheer him on by clapping their hands, waving their handkerchiefs, and shouting out, "Orthodox!" "Thirteenth apostle!" or other such cries. Good men, of course, did not like to be treated in this way, as if they were actors at a theatre; and we often find St. Chrysostom and St. Augustine (of both of whom you will hear by-and-by) objecting to it in their sermons, and begging their hearers not to show their admiration in such foolish and unseemly ways. But it seems that the people went on with it nevertheless; and no doubt there must have been some preachers who were vain enough and silly enough to be pleased with it. [18] See Chapter III.