The Apostle next bases his appeal for unity on the experiences of the Philippian Christians, and on their memories of the comfort which they have tasted in the exercise of mutual love. Our hearts find it hard to answer the question whether they are more blessed when their love passes out from them in a warm stream to others, or when the love of others pours into them. To love and to be loved equally elevate courage, and brace the weakest for calm endurance and high deeds. The man who loves and knows that he is loved will be a hero. It must always seem strange and inexplicable that a heart which has known the enlargement and joy of love given and received, should ever fall so far beneath itself as to be narrowed and troubled by nourishing feelings of separation and alienation from those whom it might have gathered into its embrace, and thereby communicated, and in communicating acquired, courage and strength. We have all known the comfort of love; should it not impel us to live in 'the unity of the spirit and the bond of peace'? Men around us are meant to be our helpers, and to be helped by us, and the one way to secure both is to walk in love, as Christ also hath loved us.
But Paul has still further heart-melting motives to urge. He turns the Philippians' thoughts to their fellowship in the Spirit. All believers have been made to drink into one spirit, and in that common participation in the same supernatural life they partake of a oneness, which renders any clefts or divisions unnatural, and contradictory of the deepest truths of their experience. The branch can no more shiver itself off from the tree, or keep the life sap enclosed within itself, than one possessor of the common gift of the Spirit can separate himself from the others who share it. We are one in Him; let us be one in heart and mind. The final appeal is connected with the preceding, inasmuch as it lays emphasis on the emotions which flow from the one life common to all believers. That participation in the Spirit naturally leads in each participant to 'tender mercies and compassions' directed to all sharers in it. The very mark of truly possessing the Spirit's life is a nature full of tenderness and swift to pity, and they who have experienced the heaven on earth of such emotions should need no other motive than the memory of its blessedness, to send them out among their brethren, and even into a hostile world, as the apostles of love, the bearers of tender mercies, and the messengers of pity.
II. The fair ideal which would complete the Apostle's joy.
We may gather from the rich abundance of motives which the Apostle suggests before he comes to present his exhortation, that he suspected the existence of some tendencies in the opposite direction in Philippi, and possibly the same conclusion may be drawn from the exuberance of the exhortation itself, and from its preceding the dehortation which follows. He does not scold, he scarcely even rebukes, but he begins by trying to melt away any light frost that had crept over the warmth of the Philippians' love; and having made that preparation, he sets before them with a fulness which would be tautological but for the earnestness that throbs in it, the ideal of unity, and presses it upon them still more meltingly, by telling them that their realisation of it will be the completion of his joy. The main injunction is 'that ye be of the same mind,' and that is followed by three clauses which are all but exactly synonymous with it, 'having the same love, being of one accord, of one mind.' The resemblance of the latter clause to the main exhortation is still more complete, if we read with Revised Version (margin) 'of the same mind,' but in any case the exhortations are all practically the same. The unity which Paul would fain see, is far deeper and more vital than mere unanimity of opinion, or identity of polity, or co-operation in practice. The clauses which expand it guard us against the mistake of thinking that intellectual or practical oneness is all that is meant by Christian unity. They are 'of the same mind,' who have the same wishes, aims, outlooks, the same hopes and fears, and who are one in the depths of their being. They have 'the same love,' all similarly loving and being loved, the same emotion filling each heart. They are united in soul, or 'with accordant souls' having, and knowing that they have them, akin, allied to one another, moving to a common end, and aware of their oneness. The unity which Christian people have hitherto reached is at its best but a small are of the great circle which the Apostle drew, and none of us can read these fervid words without shame. His joy is not yet fulfilled.