America’s most distinguished hymnologist clearly differentiates the doctrinal theologian and the doctrinal hymn writer: “The theologian and the hymn writer traverse day by day the same country, the Kingdom of our Lord. They walk the same paths; they see the same objects; but in their methods of observation and in their reports of what they see, they differ. So far as theology is a science, the theologian deals simply with the topography of the country: he explores, he measures, he expounds. So far as hymn-writing is an art, the writer deals not with topography, but with the landscape: he sees, he feels, he sings. The difference in method is made inevitable by the variance of temperament of the two men, the diversity of gifts. But both methods are as valid as inevitable. Neither man is sufficient in himself as an observer or a reporter. It is the topography and the landscape together that make the country what it is. It is didactics and poetry together that can approach the reality of the spiritual Kingdom.”[2] It follows that the doctrinal hymn is not simply reluctantly admissible, it is actually peremptorily necessary if the doctrines of the Christian faith are to be impressed upon each rising generation. This function of the hymn is all the more important because of the decline of doctrinal preaching. It is the “substance of doctrine” the hymns supply rather than the rigid philosophical shell which the creeds and the catechism offer. It is this shell that is “dry,” not the realities it too often hides. _The Homiletical Hymn._ The homiletical hymn is a homily, as its name implies—a sermonette. The term refers to its form, not to its content, for that is usually doctrinal and always didactic. It is sermonic because it proceeds from point to point, leading the way to a practical application. This form of hymn makes up the great body of the older hymnody, because it was written by sermonizers who applied homiletical methods to their hymns. Take Doddridge’s hymn, “Ye servants of the Lord”: the first stanza makes the general appeal for service; the second emphasizes the need of readiness for that service; the third, attention to the Lord’s commands; the fourth exclaims over the joy and the reward of service; the fifth, the honors that Christ shall heap on his servant. That makes a fine outline for a sermon! The homiletical hymn was often dry because the sermon was dry. They were both too frequently “proses” in a sense different from the medieval use of the word. _The Hymn of Propaganda._