There are other limits that need to be considered. A hymn may properly be the vehicle for a confession of sin or of spiritual unworthiness; but it should not take exaggerated forms of expression that only a few could honestly adopt. The same is somewhat true of hymns of consecration. Some hymns are title deeds to gifts to Jesus Christ so comprehensive that few could sincerely subscribe to them. All these hymns, though they may have been spontaneous outbursts from the hearts of the writers, will seem unreal and forced to the singer, and will only aggravate the mechanical unreality and the unwitting insincerity that vitiate the average service of song. _The Hymn of Meditation._ The hymn of meditation is less emotional than that of personal experience or feeling. It is quiet in rhetorical style and gentle in mood. Its purpose is not didactic, although it often superficially seems to be so. It is occupied with doctrinal truth only in an inferential way. It contemplates all religious truth, whether doctrinal or ethical, in an objective, impersonal way and notes its implications and corollaries. It is, therefore, emotionally negative, blending with the other elements of the service rather than controlling them. Perhaps as typical an instance as can be cited is Bishop Bickersteth’s “Peace, perfect peace, in this dark world of sin? The blood of Jesus whispers peace within.” Charles Wesley’s meditation on the Christian’s duties, “A charge to keep I have,” is another hymn of this class. Faber’s “There’s a wideness in God’s mercy” (“Was there ever kinder shepherd”) is also in the meditative mood. _The Hymn of Exhortation._ At first blush it may seem a little absurd that the members of a congregation should sing at each other such a hymn as “Stand up, stand up for Jesus” or “Work, for the night is coming.” But this is an artificial and not a genuine objection. The instinct of the human race is toward the singing of just such hortatory songs as these. The Marseillaise Hymn, which was one of the strongest influences leading to the French Revolution, is simply an exhortation, but it swept the French people off their feet and helped prepare the way for the great transformation of the social structure of the nation. The Church has gone on producing and singing these hortatory hymns throughout all generations from the time of David until now, because the impulse is native to the human heart. _The Didactic Hymn._