After his address and usual greeting, the first thing the apostle does is to let them know that he always thanks God for them. That he should write thus to the saints in Rome, Ephesus, Colosse, Thessalonica, is not surprising; and the wonder to some may be increased when it is observed that he withholds it in writing to the assemblies in Galatia. But the wisdom and the propriety of his procedure are apparent to the spiritual eye. The Corinthians were suffering the consequences of fleshly wisdom and worldliness; the Galatians had let in law, and thus fallen from grace, to the subversion of the truth of the gospel. Hence the reserve of the apostle's tone to the latter; whilst he begins to the former (far more grossly fallen) with the recognition of all he could thank God for in their case. Without some such assurance, where indeed would be the ground of appeal? What the standard by which to judge themselves? It was the more necessary because of their low and disorderly state, as well as of the reproofs that must follow.
On the other hand it is a grave misconception of their state and of the apostle's words that he alludes to any proof of maturity and richness of their spiritual life. He takes care to give prominence to the source which had so bountifully supplied the assembly in Corinth; but there is not a word that implies a spiritual state, much less maturity in it, such as could comfort his heart in thinking of them. He knew his God sufficiently to be sure that there had been no lack on His part.
“I thank my God always concerning you for the grace of God that was given you in Christ Jesus; that in everything ye were enriched in him, in all discourse and all knowledge, according as the testimony of Christ was confirmed in you, so that ye come not short in any gift, awaiting the revelation of our Lord Jesus Christ, who shall also confirm you until [the] end, unimpeachable in the day of our Lord Jesus Christ. God [is] faithful by whom ye were called into [the] fellowship of his Son Jesus Christ our Lord.” (Ver. 4-6.)
Thus the occasion of thanksgiving was the grace of God bestowed on them in virtue of Christ Jesus. But this is defined immediately after. They had been in everything made rich in Him. In spiritual discernment of His glory and feeling of His grace? in enjoyment of Christ and devotedness to His name? In these respects alas! they were defective, as all that follows shows. He means, as he says, in every sort of expression of the truth, and all knowledge, in what was preached or taught, as well as in apprehension; for God had amply é confirmed the testimony of Christ which Paul above all with others had rendered in their city. Many of the Corinthians, as we are told in Acts 18, heard, believed, and were baptized. But there was more than this: the power of the Spirit wrought largely and mightily among them. And this was the characteristic token of the assembly of God—not more truly, but far more sensibly, then than now. The issue was that they came behind in no gift, clearly not in what is called the inward grace of the spiritual life, but in communication to others and manifestation of power, as in 1 Cor. 12.
This is strengthened by the way the saints at Corinth are next characterized: “awaiting the revelation of our Lord Jesus Christ.” It is not that aspect of our Lord's return which will unfold and express His grace to His own, but rather that which deals with conscience now, as it by and by will display their faithful or unfaithful employment of all entrusted to their charge. Every saint who walks with God meanwhile and judges intelligently of the growing miseries of Christendom, not to speak of the world at large and of man, has love for the appearing of the Lord, as the time when He shall be exalted and we are to reign with Him, the power of Satan being publicly and effectually expelled from the earth. But our proper hope is that Christ will come and fetch us to the Father's house; and so shall we be forever with the Lord. The Corinthians however are hereby reminded of Him who will judge of every one's work; when each shall receive his own reward according, to his own labor. They needed to be exercised in self-judgment whether they were serving the Lord with the manifestations of the Spirit distributed to each. And hence also the repeated and striking way in which the name of “our Lord Jesus Christ” is brought before them here.
Not that a word is said to induce a doubt of His goodness or love to them. Never does a soul more need to hold fast grace than when it is probed and searched by the unsparing and all-detecting word of God. Hence the apostle does not hesitate to say that the Lord should also confirm them to the last unimpeachable in the day of our Lord Jesus Christ. How sad then that a Christian should be to Christ's reproach now! “When Christ, our life, shall appear, then shall we also appear with Him in glory. But this to the apostle becomes by the Spirit only one cogent motive more for urging us to mortify our members that are on the earth. It is the day of our Lord which here again calls our responsibility into play. And as this does and must act on conscience, being in truth intended to do this, so it makes the saint feel the need and value of what the apostle adds as closing his introduction— “God is faithful, by whom ye were called unto the fellowship of his Son Jesus Christ our Lord.” (Ver. 9.) If He has called, will He not also perform? Phil. 1:6 Thess. 5:24. But His calling to the fellowship of His Son Jesus Christ our Lord is not more sure in His grace than serious in its present claim on us that we cast no shade of unfaithfulness on both, sullying His name that is named on us, to which the very world binds us, loose as may be its sense of what is due to Him whom it knows not. How did the Corinthians answer to that call then? How do we now?