Prayer is the creator as well as the channel of devotion. The spirit of devotion is the spirit of prayer. Prayer and devotion are united as soul and body are united, as life and heart are united. There is no real prayer without devotion, no devotion without prayer. The preacher must be surrendered to God in the holiest devotion. He is not a professional man, his ministry is not a profession; it is a divine institution, a divine devotion. He is devoted to God. His aim, aspirations, ambition are for God and to God, and to such prayer is as essential as food is to life. The preacher, above everything else, must be devoted to God. The preacher's relations to God are the insignia and credentials of his ministry. These must be clear, conclusive, unmistakable. No common, surface type of piety must be his. If he does not excel in grace, he does not excel at all. If he does not preach by life, character, conduct, he does not preach at all. If his piety be light, his preaching may be as soft and as sweet as music, as gifted as Apollo, yet its weight will be a feather's weight, visionary, fleeting as the morning cloud or the early dew. Devotion to God—there is no substitute for this in the preacher's character and conduct. Devotion to a Church, to opinions, to an organization, to orthodoxy—these are paltry, misleading, and vain when they become the source of inspiration, the animus of a call. God must be the mainspring of the preacher's effort, the fountain and crown of all his toil. The name and honour of Jesus Christ, the advance of His cause, must be all in all. The preacher must have no inspiration but the name of Jesus Christ, no ambition but to have Him glorified, no toil but for Him. Then prayer will be a source of his illuminations, the means of perpetual advance, the gauge of his success. The perpetual aim, the only ambition, the preacher can cherish is to have God with him.