Berean Study Bible
Tongues, then, are a sign, not for believers, but for unbelievers. Prophecy, however, is for believers, not for unbelievers.

King James Bible
Wherefore tongues are for a sign, not to them that believe, but to them that believe not: but prophesying serveth not for them that believe not, but for them which believe.

American Standard Version
Wherefore tongues are for a sign, not to them that believe, but to the unbelieving: but prophesying is for a sign , not to the unbelieving, but to them that believe.

Darby Bible Translation
So that tongues are for a sign, not to those who believe, but to unbelievers; but prophecy, not to unbelievers, but to those who believe.

Douay-Rheims Bible
Wherefore tongues are for a sign, not to believers, but to unbelievers; but prophecies not to unbelievers, but to believers.

English Revised Version
Wherefore tongues are for a sign, not to them that believe, but to the unbelieving: but prophesying is for a sign, not to the unbelieving, but to them that believe.

Young's Literal Translation
so that the tongues are for a sign, not to the believing, but to the unbelieving; and the prophesy is not for the unbelieving, but for the believing,