In the fourth verse the stress is logically, if not grammatically, on Christ. "The Gospel of the glory of _Christ_," I say. "For we preach not ourselves, but Christ Jesus as Lord, and ourselves as your servants for Jesus' sake." Perhaps ambition had been laid to Paul's charge; "the necessity of being first" is one of the last infirmities of noble minds. But the Gospel is too magnificent to have any room for thoughts of self. A proud man may make a nation, or even a Church, the instrument or the arena of his pride; he may find in it the field of his ambition, and make it subservient to his own exaltation. But the defence which Paul has offered of his truthfulness in chap. i. is as capable of application here. No one whom Christ has seized, subdued, and made wholly His own for ever, can practise the arts of self-advancement in Christ's service. The two are mutually exclusive. Paul preaches Christ Jesus as Lord--the absolute character in which he knows Him; as for himself, he is every man's servant for Jesus' sake. He obtained mercy, that he might be found faithful in service: the very name of Jesus kills pride in his heart, and makes him ready to minister even to the unthankful and evil.
This is the force of the "for" with which the sixth verse begins. It is as if he had written, "With our experience, no other course is possible to us; for it is God, who said, Light shall shine out of darkness, who shined in our hearts to give the light of the knowledge of the glory of God in the face of Jesus Christ." But the connexion here is of little importance in comparison with the grandeur of the contents. In this verse we have the first glimpse of the Pauline doctrine, explicitly stated in the next chapter--"that if any man be in Christ, he is a new creature." The Apostle finds the only adequate parallel to his own conversion in that grand creative act in which God brought light, by a word, out of the darkness of chaos. It is not forcing the figure unduly, nor losing its poetic virtue, to think of gloom and disorder as the condition of the soul on which the Sun of Righteousness has not risen. Neither is it putting any strain upon it to make it suggest that only the creative word of God can dispel the darkness, and give the beauty of life and order to what was waste and void. There is one point, indeed, in which the miracle of grace is more wonderful than that of creation. God only commanded the light to shine out of darkness when time began; but He shone Himself in the Apostle's heart: _Ipse lux nostra_ (Bengel). He shone "to give the light of the knowledge of the glory of God in the face of Jesus Christ." In that light which God flashed into his heart, he saw the face of Jesus Christ, and knew that the glory which shone there was the glory of God. What these words mean has already been explained. In the face of Jesus Christ, the Lord of Glory, Paul saw God's Redeeming Love upon the throne of the universe; it had descended deeper than sin and death; it was exalted now above all heavens; it filled all things. That sight he carried with him everywhere; it was his salvation and his Gospel, the inspiration of his inmost life, and the motive of all his labours. One who owed all this to Christ was not likely to make Christ's service the theatre of his own ambitions; he could not do anything but take the servant's place, and proclaim Jesus Christ as Lord.
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There is a difficulty in the last half of ver. 6: it is not clear what precisely meant by πρὸς φωτισμὸν τῆς γνώσεως τῆς δόξης τοῦ Θεοῦ κ.τ.λ. By some the passage is rendered: God shined in our hearts, "that _He_ might bring into the light (for _us_ to see it) the knowledge of His glory," etc. This is certainly legitimate, and strikes me as the most natural interpretation. It would answer then to what Paul says in Gal. i. 15 f., referring to the same event: "It pleased God to reveal His Son in me." But others think all this is covered by the words "God shined in our hearts," and they take πρὸς φωτισμὸν κ.τ.λ., as a description of the apostolic vocation: God shined in our hearts, "that _we_ might bring into the light (for _others_ to see) the knowledge of His glory," etc. The words would then answer to what follows in Gal. i. 16: God revealed His Son in me, "that I might preach Him among the heathen." This construction is possible, but I think forced. In Paul's experience his conversion and vocation were indissolubly connected; but πρὸς φωτισμὸν κ.τ.λ., can only mean one, and the conversion is the likelier.