Now, brethren, if I come unto you ... - The truth which the apostle had been illustrating in an abstract manner, he proceeds to illustrate by applying it to himself. If he should come among them speaking foreign languages, it could be of no use unless it were interpreted to them.

Speaking with tongues - Speaking foreign languages; that is, speaking them "only," without any interpreter. Paul had the power of speaking foreign languages 1 Corinthians 14:18; but he did not use this power for ostentation or display, but merely to communicate the gospel to those who did not understand his native tongue.

Either by revelation - Macknight renders this, "speak intelligibly;" that is, as he explains it, "by the revelation peculiar to an apostle." Doddridge, "by the revelation of some gospel doctrine and mystery." Locke interprets it, that you might understand the revelation, or knowledge," etc.; but says in a note, that we cannot now certainly understand the difference between the meaning of the four words here used. "It is sufficient," says he, "to know that these reruns stand for some intelligible discourse tending to the edification of the church." Rosenmuller supposes the word "revelation" stands for some "clear and open knowledge of any truth arising from meditation." It is probable that the word here does not refer to divine inspiration, as it usually does, but that it stands opposed to that which is unknown and unintelligible, as that which is "revealed" ἀποκαλύψις apokalupsis stands opposed to what is unknown, concealed, "hidden," obscure. Here, therefore, it is synonymous, perhaps, with "explained." "What shall it profit, unless that which I speak be brought out of the obscurity and darkness of a foreign language, and uncovered or explained!" The original sense of the word "revelation" here is, I suppose, intended ἀποκαλύψις apokalupsis, from ἀποκαλύπτω apokaluptō, "to uncover"), and means that the sense should be uncovered, that is, explained or what was spoken could not be of value.

Or by knowledge - By making it intelligible. By so explaining it as to make it understood. Knowledge here stands opposed to the "ignorance" and "obscurity" which would attend a communication in a foreign language.

Or by prophesying - See the note at 1 Corinthians 14:1. That is, unless it be communicated, through interpretation, in the manner in which the prophetic teachers spoke; that is, made intelligible, and explained, and actually brought down to the usual characteristics of communications made in their own language.

Or by doctrine - By teaching (διδαχῇ didachē). By instruction; in the usual mode of plain and familiar instruction. The sense of this passage, therefore, is clear. Though Paul should utter among them, as he had abundant ability to do, the most weighty and important truths, yet, unless he interpreted what he said in a manner clear from obscurity, like "revelation;" or intelligibly, and so as to constitute "knowledge;" or in the manner that the prophets spoke, in a plain and intelligible manner; or in the manner usual in simple and plain "instruction," it would be useless to them. The perplexities of commentators may be seen stated in Locke, Bloomfield, and Doddridge.

Speaking with tongues - Without interpreting.

What shall I profit you? - i.e. I shall not profit you;

Except I shall speak to you either by revelation - Of some secret thing; or by knowledge, of some mystery; or by prophesying, foretelling some future event; or by doctrine, instructing you what to believe and practice. - See Whitby. These four words are taken in different acceptations by learned men. The general sense of the terms is that given above: but the peculiar meaning of the apostle is perhaps not easily discerned.

Now, brethren, if I come unto you speaking with tongues,.... The apostle exemplifies this matter in himself, and supposes it his own case, that should he who was the apostle of the Gentiles, and to be received by them as such, when he came to them, come with this gift of tongues, which he was capable of, as much, or more than any, see 1 Corinthians 14:18 and only make use of that,

what shall I profit you? of what use would my ministry be to you? what instruction, comfort, and edification, could you receive by it?

except I shall speak to you, either by revelation; by the revelation of Jesus Christ, whereby he received the Gospel he preached; or by the spirit of wisdom and revelation in the knowledge of Christ, and the mysteries of his grace, by which they were made known unto him at first, or by a fresh immediate revelation from heaven:

or by knowledge; the word of knowledge, one of the peculiar gifts of the Spirit, 1 Corinthians 12:8.

Or by prophesying; the gift of prophecy, another of the extraordinary gifts of the Spirit, mentioned in the same chapter, 1 Corinthians 12:10 and already explained:

or by doctrine? the same with the word of wisdom, another gift of the same Spirit, in 1 Corinthians 12:8. The apostle intimates, that by the use and exercise of these gifts, he might be profitable to them, to lead them into a clearer view of the doctrines of the Gospel, and for the further improvement of their knowledge in the Scriptures of truth, which could never be done by bare speaking with tongues, and with tongues they understood not.

Now, brethren, if I come unto you speaking with tongues, what shall I profit you, except I shall speak to you either by revelation, or by knowledge, or by prophesying, or by doctrine?

14:6 What shall I profit you? The gift of tongues, exercised to the church, cannot profit unless it does one of four things named:

A revelation. The inspired utterance of him who prophesies.

Knowledge. The gift of teaching the inspired truths of the Scriptures, or those revealed by the prophets.

14:6 Revelation - Of some gospel mystery. Knowledge - Explaining the ancient types and prophecies. Prophecy - Foretelling some future event. Doctrine - To regulate your tempers and lives. Perhaps this may be the sense of these obscure words.

6. Translate, "But now"; seeing there is no edification without interpretation.

revelation . prophesying-corresponding one to the other; "revelation" being the supernatural unveiling of divine truths to man, "prophesying" the enunciation to men of such revelations. So "knowledge" corresponds to "doctrine," which is the gift of teaching to others our knowledge. As the former pair refers to specially revealed mysteries, so the latter pair refers to the general obvious truths of salvation, brought from the common storehouse of believers.

14:6-14 Even an apostle could not edify, unless he spoke so as to be understood by his hearers. To speak words that have no meaning to those who hear them, is but speaking into the air. That cannot answer the end of speaking, which has no meaning; in this case, speaker and hearers are barbarians to each other. All religious services should be so performed in Christian assemblies, that all may join in, and profit by them. Language plain and easy to be understood, is the most proper for public worship, and other religious exercises. Every true follower of Christ will rather desire to do good to others, than to get a name for learning or fine speaking.