(18, 19) I thank my God.--Here the Apostle resumes in the first person, coming back, after the parenthesis, to the continuation of his own desire and example. He does not undervalue that gift the misuse and exaggeration of which he is censuring; he possesses it himself in a remarkable degree; yet in the Church (i.e., in any assembly of Christians for prayer or instruction) he would prefer to speak five words with his mind rather than ten thousand with a tongue only; for the object of such assemblies is not private prayer or private ecstatic communion with God, but the edification of others. The word used for "teach" in this verse is literally our word catechise.

Verse 18. - I speak with tongues; rather, with a tongue. More than ye all. This is exactly what we should expect of the emotional, impassioned nature of St. Paul, who was so wholly under the influence of the Spirit of God. But it is clear from all that he has been saying that, while the personal and evidential value of this gift of yielding his whole being to the spiritual impulse, which expressed and relieved itself by inarticulate utterance, was such as to make him "thank God" that he possessed it, he must either have exercised it only in private gatherings or must have always accompanied it by interpretation.

14:15-25 There can be no assent to prayers that are not understood. A truly Christian minister will seek much more to do spiritual good to men's souls, than to get the greatest applause to himself. This is proving himself the servant of Christ. Children are apt to be struck with novelty; but do not act like them. Christians should be like children, void of guile and malice; yet they should not be unskilful as to the word of righteousness, but only as to the arts of mischief. It is a proof that a people are forsaken of God, when he gives them up to the rule of those who teach them to worship in another language. They can never be benefitted by such teaching. Yet thus the preachers did who delivered their instructions in an unknown tongue. Would it not make Christianity ridiculous to a heathen, to hear the ministers pray or preach in a language which neither he nor the assembly understood? But if those who minister, plainly interpret Scripture, or preach the great truths and rules of the gospel, a heathen or unlearned person might become a convert to Christianity. His conscience might be touched, the secrets of his heart might be revealed to him, and so he might be brought to confess his guilt, and to own that God was present in the assembly. Scripture truth, plainly and duly taught, has a wonderful power to awaken the conscience and touch the heart.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.