I thank, etc. As there are many that detract from another's excellencies, in which they cannot themselves have distinction, Paul, that he might not seem to depreciate, through malignity or envy, the gift of tongues, anticipates that suspicion, by showing that he is, in this respect, superior to them all. "See," says he, "how little occasion you have to suspect the design of my discourse, as if I depreciated what I myself lacked; for if we were to contend as to tongues, there is not one of you that could bear comparison with me. While, however, I might display myself to advantage in this department., I am more concerned for edification." Paul's doctrine derives no small weight from the circumstance, that he has not an eye to himself. Lest, however, he should appear excessively arrogant, in preferring himself before all others, he ascribes it all to God. Thus he tempers his boasting with modesty.

I thank my God - Paul here shows that he did not undervalue or despise the power of speaking foreign languages. It was with him a subject of thanksgiving that he could speak so many; but he felt that there were more valuable endowments than this; see the next verse.
With tongues more than ye all - I am able to speak more foreign languages than all of you. "How many" languages Paul could speak, he has no where told us. It is reasonable, however, to presume that he was able to speak the language of any people to whom God in his providence, and by his Spirit, called him to preach. He had been commissioned to preach to the "Gentiles," and it is probable that he was able to speak the languages of all the nations among whom he ever traveled. There is no account of his being under a necessity of employing an interpreter wherever he preached.

I speak with tongues more than ye all - He understood more languages than any of them did: and this was indispensably necessary, as he was the apostle of the Gentiles in general, and had to preach to different provinces where different dialects, if not languages, were used. In the Hebrew, Syriac, Greek, and Latin, he was undoubtedly well skilled from his education; and how many he might understand by miraculous gift we cannot tell. But, even literally understood, it is very probable that he knew more languages than any man in the Church of Corinth.

(8) I thank my God, I speak with tongues more than ye all:
(8) He sets himself as an example, both that they may be ashamed of their foolish ambition, and also that he may avoid all suspicion of envy.

I thank my God, I speak with tongues more than you all. This the apostle says, to observe to them that he did not despise speaking with tongues: nor did he endeavour to beat them off, and dissuade them from desiring them, or envied their having them, because he was destitute of them himself; for he had this gift in a very eminent manner, and oftentimes made use of it, and was frequently under a necessity of so doing; he could speak with more tongues than any of those that had them, and spoke them oftener than they did; having occasion for them through his travelling into different countries, and preaching the Gospel to people of divers languages; and this he mentions also not in a boasting manner, but in great humility, giving thanks to God, and acknowledging him to be the author of this gift.

tongues--The oldest manuscripts have the singular, "in a tongue [foreign]."

I had rather speak five words, etc. All must be done to edification. Hence, all must be understood. There is a lesson here to preachers who are so learned in their utterances that the people cannot understand them.
Be not children in understanding. Use manly good sense and judgment in the church. To babble in an unknown tongue is like a child.
In malice be ye children. To vainly choose a course that would merely excite wonder, and not edify, would seem to partake of malice rather than love.
In the law it is written. See Isaiah 28:11-12, for the quotation. The Jews were there told that for their sins they would be carried into the Assyrian captivity, where they would hear strange languages. This was a judgment. Wherefore, do not force the church to listen to listen to strange tongues which serve to remind of the judgment of Israel.
Wherefore tongues, etc. They are a sign to unbelievers, who are moved when they hear the gospel spoken in their tongue by men who have never learned it and do not understand it.