The legitimacy of such motives as are appealed to in this paragraph will always be more or less questioned among Christian men, but as long as human nature is what it is they will always be appealed to. Ζηλότυπον γὰρ τὸ τῶν ἀνθρώπων γένος (Chrys.). A great man of action like St. Paul will of course find his temptations along this line. He is so eager to get men to act, and the inertness of human nature is so great, that it is hard to decline anything which will set it in motion. It is not the highest motive, certainly, when the forwardness of one stimulates another; but in a good cause, it is better than none. A good cause, too, has a wonderful power of its own when men begin to attend to it; it asserts itself, and takes possession of souls on its own account. Rivalry becomes generous then, even if it remains; it is a race in love that is being run, and all who run obtain the prize. Competitions for prizes which only one can gain have a great deal in them that is selfish and bad; but rivalry in the service of others--rivalry in unselfishness--will not easily degenerate in this direction. Paul does not need to be excused because he stimulates the Macedonians by the promptitude of the Corinthians--though he had his misgivings about this last--and the Corinthians by the liberality of the Macedonians. The real motive in both cases was "the grace of our Lord Jesus Christ, who, though He was rich, yet for our sakes became poor." It is this which underlies everything in the Christian heart, and nothing can do harm which works as its auxiliary.