1 Corinthians 14:22

“Wherefore tongues are for a sign, etc.] Of wrath and punishment inflicted on a rebellious and unbelieving people, and not of grace and kindness, as prophesying, or speaking to them by the prophets, was; and so this is an inference from what is said in the preceding verse, and shows, that there was no reason why believers should be so very desirous of them. But if these words refer to all that is said before on this subject, the word “sign” may be taken for a miracle; and so a new argument is formed against an over fondness for divers tongues, and the use of them in public worship, showing the preferableness of prophecy to them; for speaking with divers tongues was used in a miraculous way,…”

“Thus from Isaiah it appears, reasons Paul, that "tongues" (unknown and uninterpreted) are not a sign mainly intended for believers (though at the conversion of Cornelius and the Gentiles with him, tongues were vouchsafed to him and them to confirm their faith), but mainly to be a condemnation to those, the majority, who, like Israel in Isaiah's day, reject the sign and the accompanying message. Compare "yet . . . will they not hear Me" (Co1 14:21). "Sign" is often used for a condemnatory sign (Eze 4:3-4; Mat 12:39-42). Since they will not understand, they shall not understand. prophesying . . . not for them that believe not, but . . . believe--that is, prophesying has no effect on them that…”

“Wherefore - Thus, (Ὥστε Hōste), or wherefore. The apostle does not mean to say that what he was about to state was a direct conclusion from the passage of Scripture which he had quoted, but that it followed from all that he had said, and from the whole view of the subject. “The true statement or doctrine is, that tongues are for a sign,” etc. Tongues - The power of speaking foreign languages. Are for a sign - An “indication,” an evidence, or a proof that God has imparted this power, and that he attends the preaching of the gospel with his approbation. It is a “sign,” or a “miracle,” which, like all other miracles, may be designed to convince the unbelieving world that the religion is from…”

“Tongues are intended for a sign to unbelievers - To engage their attention, and convince them the message is of God. Whereas prophecy is not so much for unbelievers, as for the confirmation of them that already believe. 1 Corinthians 14:23”

“for a: Mar 16:17; Act 2:6-12, Act 2:32-36 not to: Ti1 1:9 but for: Co1 14:3 1 Corinthians 14:23”