By saying this Paul intimates that even his assurance and pride are to be given to the Lord, because it is by his favor that he has them. Someone who has confidence in the power of the gospel has confidence in the God who enables it. Thus God is glorified by all godly work. A person who has not received power from God cannot glory in the Lord, because he is seeking his own glory. Commentary on Paul’s Epistles.
But he that glorieth let him glory in the Lord. Let him glory in truth as before the Lord. Secondly, and better, to glory in the Lord is to glory with the glory given by the Lord, which alone commends a Prayer of Manasseh , and vouches for him by the wonders which it works through him. This is the genuine meaning, for S. Paul contrasts glorying in one"s self with glorying in the Lord. To glory in self is to commend self; to glory in the Lord is to be commanded by the Lord, and to glory in that commendation. Still it follows from this, thirdly, that he who truly glories should glory not in himself but in the Lord, by referring all that has been received to Him, whose gifts they are, by giving to Him all the glory, and directing everything to His praise and glory (Chrysostom).
By these words the Apostle shows where, when, and in what we should glory, and at the same time clears himself of all charge of ostentation and desire of vain-glory. He says implicitly: These great and fine things...
