But to return to the Epistle. God is described by the Apostle not only as triumphing over them (_i.e._, himself and his colleagues) in Christ, but as making manifest through them the savour of His knowledge in every place. It has been questioned whether "His" knowledge is the knowledge of God or of Christ. Grammatically, the question can hardly be answered; but, as we see from chap. iv. 6, the two things which it proposes to distinguish are really one; what is manifested in the apostolic ministry is the knowledge of God as He is revealed in Christ. But why does Paul use the expression "_the savour_ of His knowledge"? It was suggested probably by the figure of the triumph, which was present to his mind in all the detail of its circumstances. Incense smoked on every altar as the victor passed through the streets of Rome; the fragrant steam floated over the procession, a silent proclamation of victory and joy. But Paul would not have appropriated this feature of the triumph, and applied it to his ministry, unless he had felt that there was a real point of comparison, that the knowledge of Christ which he diffused among men, wherever he went, was in very truth a fragrant thing.[21] True, he was not a free man; he had been subdued by God, and made the slave of Jesus Christ; as the Lord of glory went forth conquering and to conquer, over Syria and Asia and Macedonia and Greece, He led him as a captive in the triumphal march of His grace; he was the trophy of Christ's victory; every one who saw him saw that necessity was laid upon Him; but what a gracious necessity it was! "The _love_ of Christ constraineth us." The captives who were dragged in chains behind a Roman chariot also made manifest the knowledge of their conqueror; they declared to all the spectators his power and his pitilessness; there was nothing in that knowledge to suggest the idea of a fragrance like incense. But as Paul moved through the world, all who had eyes to see saw in him not only the power but the sweetness of God's redeeming love. The mighty Victor made manifest through Him, not only His might, but His charm, not only His greatness, but His grace. It was a good thing, men felt, to be subdued and led in triumph like Paul; it was to move in an atmosphere perfumed by the love of Christ, as the air around the Roman triumph was perfumed with incense. The Apostle is so sensible of this that he weaves it into his sentence as an indispensable part of his thought; it is not merely the knowledge of God which is made manifest through him as he is led in triumph, but that knowledge as a fragrant, gracious thing, speaking to every one of victory and goodness and joy.