1 Corinthians 14:18-22

Verse 18

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.
Verse 19

Yet in the church - As the grand object of public worship is the edification of those who attend, five words spoken so as to convey edification, were of much more consequence than ten thousand which, not being understood, could convey none. By the word γλωσση, tongue, to which we add unknown, I suppose the apostle always means the Hebrew, for the reasons offered in the note on 1Cor 14:1.

One of the greatest difficulties, says Bishop Pearce, in this epistle is contained in the words πνευμα and νους, spirit and understanding, which are frequently used in this chapter; and fixing the true meaning of these words will solve the difficulty. In this verse the apostle explains λαλειν τῳ νοΐ, to speak with the understanding, by ἱνα αλλους κατηχησω, that I might teach others; so that the sense of νους, understanding, seems to be, that understanding which the hearer has of what is said; and this sense will agree well with, I will sing with the spirit, and with the understanding, 1Cor 14:15.

He observes also that πνευμα spirit, and νους, understanding, have a sense opposite to each other; so that if νους is rightly rendered, the understanding which another has of what is said; then πνευμα will signify a man's own mind, i.e. his own understanding of what he himself speaks; and this sense agrees well with 1Cor 14:2 : In the spirit he speaketh mysteries.
Verse 20

Be not children in understanding - There are three words here to which we must endeavor to affix the proper sense.

1. παιδια signifies children in general, but particularly such as are grown up, so as to be fit to send to school in order to receive instruction;

2. νηπιος, from νη, not, and ειπω, I speak, signifies an infant; one that cannot yet speak, and is in the lowest stage of infancy;

3. τελειοι, from τελεω, I complete or perfect, signifies those who are arrived at perfect maturity, both of growth and understanding. We shall now see the apostle's meaning: Brethren, be not, παιδια, as little children, just beginning to go to school, in order to learn the first elements of their mother tongue, and with an understanding only sufficient to apprehend those elements.

In malice - Κακιᾳ, In wickedness, νηπιαζετε, be ye as infants, who neither speak, do, nor purpose evil.

But in understanding - Τελειοι γινεσθε, Be ye perfect men, whose vigor of body, and energy of mind show a complete growth, and a well cultivated understanding.
Verse 21

In the law it is written - But the passage quoted is in Isa 28:11. Here is no contradiction, for the term תירה torah, Law, was frequently used by the Jews to express the whole Scriptures, law, prophets, and hagiographia; and they used it to distinguish these sacred writings from the words of the scribes.

With men of other tongues - Bishop Pearce paraphrases this verse as follows: "With the tongues of foreigners and with the lips of foreigners will I speak to this people; and yet, for all that, will they not hear me, saith the Lord." To enter into the apostle's meaning we must enter into that of the prophet. The Jewish people were under the teaching of the prophets who were sent from God; these instructed, reproved, and corrected them by this Divine authority. They however became so refractory and disobedient that God purposed to cast them off, and abandon them to the Babylonians: then, they had a people to teach, correct, and reprove them, whose language they did not understand. The discipline that they received in this way was widely different from that which they received while under the teaching of the prophets and the government of God; and yet for all this they did not humble themselves before their Maker that this affliction might be removed from them.
Verse 22

Wherefore tongues are for a sign - The miraculous gift of tongues was never designed for the benefit of those who have already believed, but for the instruction of unbelievers, that they might see from such a miracle that this is the work of God; and so embrace the Gospel. But as, in the times of the prophet, the strange Babylonish tongues came in the way of punishment, and not in the way of mercy; take heed that it be not the case now: that, by dwelling on the gift, ye forget the Giver; and what was designed for you as a blessing, may prove to you to be a curse. For if, because ye have the gift of tongues, ye will choose for your own aggrandizement to use them in the public congregation where none understands them, God may curse your blessings.

Prophesying - Teaching the things of God in a known language is of infinitely more consequence than speaking in all the foreign tongues in the universe.
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