The request for the sake of which the whole letter is written is here put as a kindness to Paul himself, and thus an entirely different motive is appealed to. "Surely you would be glad to give me pleasure. Then do this thing which I ask you." It is permissible to seek to draw to virtuous acts by such a motive, and to reinforce higher reasons by the desire to please dear ones, or to win the approbation of the wise and good. It must be rigidly kept as a subsidiary motive, and distinguished from the mere love of applause. Most men have some one whose opinion of their acts is a kind of embodied conscience, and whose satisfaction is reward. But pleasing the dearest and purest among men can never be more than at most a crutch to help lameness or a spur to stimulate. If however this motive be lifted to the higher level, and these words thought of as Paul's echo of Christ's appeal to those who love Him, they beautifully express the peculiar blessedness of Christian ethics. The strongest motive, the very mainspring and pulsing heart of Christian duty, is to please Christ. His language to His followers is not, "Do this because it is right," but, "Do this because it pleaseth Me." They have a living Person to gratify, not a mere law of duty to obey. The help which is given to weakness by the hope of winning golden opinions from, or giving pleasure to, those whom men love is transferred in the Christian relation to Jesus. So the cold thought of duty is warmed, and the weight of obedience to a stony, impersonal law is lightened, and a new power is enlisted on the side of goodness, which sways more mightily than all the abstractions of duty. The Christ Himself makes His appeal to men in the same tender fashion as Paul to Philemon. He will move to holy obedience by the thought--wonderful as it is--that it gladdens Him. Many a weak heart has been braced and made capable of heroisms of endurance and effort, and of angel deeds of mercy, all beyond its own strength, by that great thought, "We labour that, whether present or absent, we may be well-pleasing to Him." II. Verse 21 exhibits love commanding, in the confidence of love obeying. "Having confidence in thine obedience I write unto thee, knowing that thou wilt do even beyond what I say." In _v_. 8 the Apostle had waived his right to enjoin, because he had rather speak the speech of love, and request. But here, with the slightest possible touch, he just lets the note of authority sound for a single moment, and then passes into the old music of affection and trust. He but names the word "obedience," and that in such a way as to present it as the child of love, and the privilege of his friend. He trusts Philemon's obedience, because he knows his love, and is sure that it is love of such a sort as will not stand on the exact measure, but will delight in giving it "pressed down and running over."